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64231423219173 = 3737173787960647
BaseRepresentation
bin11101001101011000010110…
…01010100001010111100101
322102102110112022200211110010
432212230023022201113211
531404331423321003143
6344335301455120433
716346365355024460
oct1646541312412745
9272373468624403
1064231423219173
11195144369965a1
127254591813119
1329abcc6b793b2
1411c0b631da2d7
15765c17a3aa33
hex3a6b0b2a15e5

64231423219173 has 64 divisors (see below), whose sum is σ = 101117313884160. Its totient is φ = 35500161745152.

The previous prime is 64231423219091. The next prime is 64231423219207. The reversal of 64231423219173 is 37191232413246.

64231423219173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64231423219173 - 212 = 64231423215077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64231423211173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1059072736 + ... + 1059133382.

It is an arithmetic number, because the mean of its divisors is an integer number (1579958029440).

Almost surely, 264231423219173 is an apocalyptic number.

It is an amenable number.

64231423219173 is a deficient number, since it is larger than the sum of its proper divisors (36885890664987).

64231423219173 is a wasteful number, since it uses less digits than its factorization.

64231423219173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68746.

The product of its digits is 1306368, while the sum is 48.

The spelling of 64231423219173 in words is "sixty-four trillion, two hundred thirty-one billion, four hundred twenty-three million, two hundred nineteen thousand, one hundred seventy-three".

Divisors: 1 3 7 21 37 111 173 259 519 777 1211 3633 6401 7879 19203 23637 44807 55153 60647 134421 165459 181941 291523 424529 874569 1273587 1363067 2040661 2243939 4089201 6121983 6731817 9541469 10491931 15707573 28624407 31475793 47122719 50433479 73443517 151300437 220330551 353034353 388201447 477837713 1059103059 1164604341 1433513139 2717410129 3344863991 8152230387 10034591973 17679995381 53039986143 82665924349 123759967667 247997773047 371279903001 578661470443 1735984411329 3058639200913 9175917602739 21410474406391 64231423219173