72875991892 has 24 divisors (see below), whose sum is σ = 139644116640. Its totient is φ = 33002302560.

The previous prime is 72875991889. The next prime is 72875991941. The reversal of 72875991892 is 29819957827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3066738 + ... + 3090409.

It is an arithmetic number, because the mean of its divisors is an integer number (5818504860).

Almost surely, 2^72875991892 is an apocalyptic number.

It is an amenable number.

72875991892 is a deficient number, since it is larger than the sum of its proper divisors (66768124748).

72875991892 is a wasteful number, since it uses less digits than its factorization.

72875991892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6157431 (or 6157429 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 67.

The spelling of 72875991892 in words is "seventy-two billion, eight hundred seventy-five million, nine hundred ninety-one thousand, eight hundred ninety-two".