91576232005 has 16 divisors (see below), whose sum is σ = 111897373824. Its totient is φ = 71928118080.

The previous prime is 91576231991. The next prime is 91576232023. The reversal of 91576232005 is 50023267519.

It is not a de Polignac number, because 91576232005 - 2²⁷ = 91442014277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107617 + ... + 441286.

It is an arithmetic number, because the mean of its divisors is an integer number (6993585864).

Almost surely, 2^91576232005 is an apocalyptic number.

It is an amenable number.

91576232005 is a deficient number, since it is larger than the sum of its proper divisors (20321141819).

91576232005 is a wasteful number, since it uses less digits than its factorization.

91576232005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549516.

The product of its (nonzero) digits is 113400, while the sum is 40.

The spelling of 91576232005 in words is "ninety-one billion, five hundred seventy-six million, two hundred thirty-two thousand, five".