Search a number
-
+
468638727836863 = 1151407157886913
BaseRepresentation
bin110101010001110010111010…
…0111001101001010010111111
32021110022102110201011001012211
41222203211310321221102333
5442411134103311234423
64340413354235441251
7200466013360054603
oct15243456471512277
92243272421131184
10468638727836863
11126360628528581
12446893a98b6227
1317165599c9069c
1483a2342119503
15392a57e95910d
hex1aa3974e694bf

468638727836863 has 4 divisors (see below), whose sum is σ = 469045885724928. Its totient is φ = 468231569948800.

The previous prime is 468638727836791. The next prime is 468638727836887. The reversal of 468638727836863 is 368638727836864.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 468638727836863 - 245 = 433454355748031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (468638727876863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203578942306 + ... + 203578944607.

It is an arithmetic number, because the mean of its divisors is an integer number (117261471431232).

Almost surely, 2468638727836863 is an apocalyptic number.

468638727836863 is a deficient number, since it is larger than the sum of its proper divisors (407157888065).

468638727836863 is a wasteful number, since it uses less digits than its factorization.

468638727836863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407157888064.

The product of its digits is 56184274944, while the sum is 85.

Subtracting from 468638727836863 its reverse (368638727836864), we obtain a palindrome (99999999999999).

The spelling of 468638727836863 in words is "four hundred sixty-eight trillion, six hundred thirty-eight billion, seven hundred twenty-seven million, eight hundred thirty-six thousand, eight hundred sixty-three".

Divisors: 1 1151 407157886913 468638727836863