91974553996 has 96 divisors (see below), whose sum is σ = 182552832000. Its totient is φ = 40228911360.

The previous prime is 91974553987. The next prime is 91974554017. The reversal of 91974553996 is 69935547919.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74714701 + ... + 74715931.

It is an arithmetic number, because the mean of its divisors is an integer number (1901592000).

Almost surely, 2^91974553996 is an apocalyptic number.

It is an amenable number.

91974553996 is a deficient number, since it is larger than the sum of its proper divisors (90578278004).

91974553996 is a wasteful number, since it uses less digits than its factorization.

91974553996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799 (or 1797 counting only the distinct ones).

The product of its digits is 82668600, while the sum is 67.

The spelling of 91974553996 in words is "ninety-one billion, nine hundred seventy-four million, five hundred fifty-three thousand, nine hundred ninety-six".