8136396972432 has 40 divisors (see below), whose sum is σ = 23354472792480. Its totient is φ = 2712132324000.

The previous prime is 8136396972413. The next prime is 8136396972469. The reversal of 8136396972432 is 2342796936318.

8136396972432 is a `hidden beast` number, since 8 + 13 + 63 + 9 + 69 + 72 + 432 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 8136396972432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9417125694 + ... + 9417126557.

It is an arithmetic number, because the mean of its divisors is an integer number (583861819812).

Almost surely, 2^{8136396972432} is an apocalyptic number.

It is an amenable number.

8136396972432 is an abundant number, since it is smaller than the sum of its proper divisors (15218075820048).

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

8136396972432 is a wasteful number, since it uses less digits than its factorization.

8136396972432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18834252268 (or 18834252256 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 63.

The spelling of 8136396972432 in words is "eight trillion, one hundred thirty-six billion, three hundred ninety-six million, nine hundred seventy-two thousand, four hundred thirty-two".