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2158592871643 = 131094493392771
BaseRepresentation
bin11111011010010110001…
…010010100110011011011
321122100201001022110201221
4133122112022110303123
5240331244233343033
64331351024352511
7311644641446155
oct37322612246333
97570631273657
102158592871643
117624aa44664a
122aa424475737
13128729127a60
1476695557ad5
153b23b16812d
hex1f696294cdb

2158592871643 has 16 divisors (see below), whose sum is σ = 2351190996000. Its totient is φ = 1969869404160.

The previous prime is 2158592871601. The next prime is 2158592871767. The reversal of 2158592871643 is 3461782958512.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2158592871643 - 221 = 2158590774491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2158592871943) 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 15 ways as a sum of consecutive naturals, for example, 1060153 + ... + 2332618.

It is an arithmetic number, because the mean of its divisors is an integer number (146949437250).

Almost surely, 22158592871643 is an apocalyptic number.

2158592871643 is a deficient number, since it is larger than the sum of its proper divisors (192598124357).

2158592871643 is a wasteful number, since it uses less digits than its factorization.

2158592871643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393342.

The product of its digits is 29030400, while the sum is 61.

It can be divided in two parts, 2158 and 592871643, that added together give a square (592873801 = 243492).

The spelling of 2158592871643 in words is "two trillion, one hundred fifty-eight billion, five hundred ninety-two million, eight hundred seventy-one thousand, six hundred forty-three".

Divisors: 1 13 109 449 1417 5837 48941 636233 3392771 44106023 369812039 1523354179 4807556507 19803604327 166045605511 2158592871643