72641455692 has 48 divisors (see below), whose sum is σ = 183208607232. Its totient is φ = 22268727360.

The previous prime is 72641455673. The next prime is 72641455717. The reversal of 72641455692 is 29655414627.

It is a happy number.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 816858 + ... + 901409.

It is an arithmetic number, because the mean of its divisors is an integer number (3816845984).

Almost surely, 2^72641455692 is an apocalyptic number.

It is an amenable number.

72641455692 is an abundant number, since it is smaller than the sum of its proper divisors (110567151540).

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

72641455692 is a wasteful number, since it uses less digits than its factorization.

72641455692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718558 (or 1718556 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 51.

The spelling of 72641455692 in words is "seventy-two billion, six hundred forty-one million, four hundred fifty-five thousand, six hundred ninety-two".