8156492431992 has 80 divisors (see below), whose sum is σ = 24048138054600. Its totient is φ = 2575734448320.

The previous prime is 8156492431949. The next prime is 8156492431999. The reversal of 8156492431992 is 2991342946518.

8156492431992 is a `hidden beast` number, since 8 + 1 + 5 + 6 + 492 + 43 + 19 + 92 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8156492431999) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 331229259 + ... + 331253882.

Almost surely, 2^{8156492431992} is an apocalyptic number.

It is an amenable number.

8156492431992 is an abundant number, since it is smaller than the sum of its proper divisors (15891645622608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8156492431992 is a wasteful number, since it uses less digits than its factorization.

8156492431992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662483178 (or 662483165 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 63.

The spelling of 8156492431992 in words is "eight trillion, one hundred fifty-six billion, four hundred ninety-two million, four hundred thirty-one thousand, nine hundred ninety-two".