91112690051 has 16 divisors (see below), whose sum is σ = 98361204480. Its totient is φ = 84090286080.

The previous prime is 91112690047. The next prime is 91112690057. The reversal of 91112690051 is 15009621119.

It is a cyclic number.

It is not a de Polignac number, because 91112690051 - 2² = 91112690047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91112689993 and 91112690020.

It is not an unprimeable number, because it can be changed into a prime (91112690057) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 73715 + ... + 433196.

It is an arithmetic number, because the mean of its divisors is an integer number (6147575280).

Almost surely, 2^91112690051 is an apocalyptic number.

91112690051 is a deficient number, since it is larger than the sum of its proper divisors (7248514429).

91112690051 is a wasteful number, since it uses less digits than its factorization.

91112690051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507134.

The product of its (nonzero) digits is 4860, while the sum is 35.

The spelling of 91112690051 in words is "ninety-one billion, one hundred twelve million, six hundred ninety thousand, fifty-one".