91363868324 has 12 divisors (see below), whose sum is σ = 163288616064. Its totient is φ = 44709978024.

The previous prime is 91363868311. The next prime is 91363868327. The reversal of 91363868324 is 42386836319.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (91363868327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242988824 + ... + 242989199.

It is an arithmetic number, because the mean of its divisors is an integer number (13607384672).

Almost surely, 2^91363868324 is an apocalyptic number.

91363868324 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

91363868324 is a deficient number, since it is larger than the sum of its proper divisors (71924747740).

91363868324 is a wasteful number, since it uses less digits than its factorization.

91363868324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485978074 (or 485978072 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 53.

The spelling of 91363868324 in words is "ninety-one billion, three hundred sixty-three million, eight hundred sixty-eight thousand, three hundred twenty-four".