91104879004 has 12 divisors (see below), whose sum is σ = 160688921344. Its totient is φ = 45193758624.

The previous prime is 91104878987. The next prime is 91104879053. The reversal of 91104879004 is 40097840119.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89669649 + ... + 89670664.

Almost surely, 2^91104879004 is an apocalyptic number.

It is an amenable number.

91104879004 is a deficient number, since it is larger than the sum of its proper divisors (69584042340).

91104879004 is a wasteful number, since it uses less digits than its factorization.

91104879004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179340444 (or 179340442 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 91104879004 in words is "ninety-one billion, one hundred four million, eight hundred seventy-nine thousand, four".