8045640896972 has 24 divisors (see below), whose sum is σ = 16116307151616. Its totient is φ = 3442769236368.

The previous prime is 8045640896941. The next prime is 8045640897011. The reversal of 8045640896972 is 2796980465408.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors.

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, 223422368 + ... + 223458375.

It is an arithmetic number, because the mean of its divisors is an integer number (671512797984).

Almost surely, 2^{8045640896972} is an apocalyptic number.

It is an amenable number.

8045640896972 is an abundant number, since it is smaller than the sum of its proper divisors (8070666254644).

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

8045640896972 is a wasteful number, since it uses less digits than its factorization.

8045640896972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446881397 (or 446881395 counting only the distinct ones).

The product of its (nonzero) digits is 209018880, while the sum is 68.

The spelling of 8045640896972 in words is "eight trillion, forty-five billion, six hundred forty million, eight hundred ninety-six thousand, nine hundred seventy-two".