91433138604 has 96 divisors (see below), whose sum is σ = 225757163520. Its totient is φ = 28762905600.

The previous prime is 91433138597. The next prime is 91433138617. The reversal of 91433138604 is 40683133419.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2397969 + ... + 2435799.

It is an arithmetic number, because the mean of its divisors is an integer number (2351637120).

Almost surely, 2^91433138604 is an apocalyptic number.

It is an amenable number.

91433138604 is an abundant number, since it is smaller than the sum of its proper divisors (134324024916).

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

91433138604 is a wasteful number, since it uses less digits than its factorization.

91433138604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38031 (or 38029 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 91433138604 in words is "ninety-one billion, four hundred thirty-three million, one hundred thirty-eight thousand, six hundred four".