842157264231 has 6 divisors (see below), whose sum is σ = 1216449381680. Its totient is φ = 561438176148.

The previous prime is 842157264187. The next prime is 842157264233. The reversal of 842157264231 is 132462751248.

842157264231 is a `hidden beast` number, since 8 + 4 + 2 + 1 + 572 + 6 + 42 + 31 = 666.

It is not a de Polignac number, because 842157264231 - 2⁹ = 842157263719 is a prime.

It is a super-2 number, since 2×842157264231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842157264233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46786514671 + ... + 46786514688.

Almost surely, 2^842157264231 is an apocalyptic number.

842157264231 is a deficient number, since it is larger than the sum of its proper divisors (374292117449).

842157264231 is a wasteful number, since it uses less digits than its factorization.

842157264231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93573029365 (or 93573029362 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The spelling of 842157264231 in words is "eight hundred forty-two billion, one hundred fifty-seven million, two hundred sixty-four thousand, two hundred thirty-one".