91610908860975 has 96 divisors (see below), whose sum is σ = 181742681771520. Its totient is φ = 39831649482240.

The previous prime is 91610908860973. The next prime is 91610908860979. The reversal of 91610908860975 is 57906880901619.

91610908860975 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 91610908860975 - 2¹ = 91610908860973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91610908860971) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 43883932 + ... + 45924081.

It is an arithmetic number, because the mean of its divisors is an integer number (1893152935120).

Almost surely, 2^{91610908860975} is an apocalyptic number.

91610908860975 is a deficient number, since it is larger than the sum of its proper divisors (90131772910545).

91610908860975 is a wasteful number, since it uses less digits than its factorization.

91610908860975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89808129 (or 89808124 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 69.

The spelling of 91610908860975 in words is "ninety-one trillion, six hundred ten billion, nine hundred eight million, eight hundred sixty thousand, nine hundred seventy-five".