91133135692 has 24 divisors (see below), whose sum is σ = 159962052096. Its totient is φ = 45429787008.

The previous prime is 91133135683. The next prime is 91133135693. The reversal of 91133135692 is 29653133119.

It is not an unprimeable number, because it can be changed into a prime (91133135693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4458648 + ... + 4479040.

It is an arithmetic number, because the mean of its divisors is an integer number (6665085504).

Almost surely, 2^91133135692 is an apocalyptic number.

It is an amenable number.

91133135692 is a deficient number, since it is larger than the sum of its proper divisors (68828916404).

91133135692 is a wasteful number, since it uses less digits than its factorization.

91133135692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23697 (or 23695 counting only the distinct ones).

The product of its digits is 131220, while the sum is 43.

The spelling of 91133135692 in words is "ninety-one billion, one hundred thirty-three million, one hundred thirty-five thousand, six hundred ninety-two".