91612775674 has 16 divisors (see below), whose sum is σ = 157081934016. Its totient is φ = 39254752800.

The previous prime is 91612775633. The next prime is 91612775689. The reversal of 91612775674 is 47657721619.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582787 + ... + 723094.

It is an arithmetic number, because the mean of its divisors is an integer number (9817620876).

Almost surely, 2^91612775674 is an apocalyptic number.

91612775674 is a deficient number, since it is larger than the sum of its proper divisors (65469158342).

91612775674 is a wasteful number, since it uses less digits than its factorization.

91612775674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310901.

The product of its digits is 4445280, while the sum is 55.

The spelling of 91612775674 in words is "ninety-one billion, six hundred twelve million, seven hundred seventy-five thousand, six hundred seventy-four".