91324885764 has 48 divisors (see below), whose sum is σ = 243549772928. Its totient is φ = 26091030528.

The previous prime is 91324885763. The next prime is 91324885781. The reversal of 91324885764 is 46758842319.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (91324885763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1633782 + ... + 1688754.

Almost surely, 2^91324885764 is an apocalyptic number.

It is an amenable number.

91324885764 is an abundant number, since it is smaller than the sum of its proper divisors (152224887164).

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

91324885764 is a wasteful number, since it uses less digits than its factorization.

91324885764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74764 (or 74762 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 57.

The spelling of 91324885764 in words is "ninety-one billion, three hundred twenty-four million, eight hundred eighty-five thousand, seven hundred sixty-four".