91332212908 has 24 divisors (see below), whose sum is σ = 165354900480. Its totient is φ = 44088186240.

The previous prime is 91332212891. The next prime is 91332212911. The reversal of 91332212908 is 80921223319.

It is a super-2 number, since 2×91332212908² (a number of 23 digits) contains 22 as substring.

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, 2565760 + ... + 2601112.

It is an arithmetic number, because the mean of its divisors is an integer number (6889787520).

Almost surely, 2^91332212908 is an apocalyptic number.

It is an amenable number.

91332212908 is a deficient number, since it is larger than the sum of its proper divisors (74022687572).

91332212908 is a wasteful number, since it uses less digits than its factorization.

91332212908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57657 (or 57655 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 91332212908 in words is "ninety-one billion, three hundred thirty-two million, two hundred twelve thousand, nine hundred eight".