91923608892 has 24 divisors (see below), whose sum is σ = 214496069200. Its totient is φ = 30640110336.

The previous prime is 91923608879. The next prime is 91923608911. The reversal of 91923608892 is 29880632919.

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, 260034 + ... + 501462.

Almost surely, 2^91923608892 is an apocalyptic number.

It is an amenable number.

91923608892 is an abundant number, since it is smaller than the sum of its proper divisors (122572460308).

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

91923608892 is a wasteful number, since it uses less digits than its factorization.

91923608892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273165 (or 273163 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 57.

The spelling of 91923608892 in words is "ninety-one billion, nine hundred twenty-three million, six hundred eight thousand, eight hundred ninety-two".