91535534384 has 40 divisors (see below), whose sum is σ = 202700264448. Its totient is φ = 39226720320.

The previous prime is 91535534359. The next prime is 91535534399. The reversal of 91535534384 is 48343553519.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2628929 + ... + 2663519.

Almost surely, 2^91535534384 is an apocalyptic number.

It is an amenable number.

91535534384 is an abundant number, since it is smaller than the sum of its proper divisors (111164730064).

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

91535534384 is a wasteful number, since it uses less digits than its factorization.

91535534384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58233 (or 58227 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 50.

The spelling of 91535534384 in words is "ninety-one billion, five hundred thirty-five million, five hundred thirty-four thousand, three hundred eighty-four".