91371555253075 has 12 divisors (see below), whose sum is σ = 113395067209288. Its totient is φ = 73036380528000.

The previous prime is 91371555253051. The next prime is 91371555253087. The reversal of 91371555253075 is 57035255517319.

It is not a de Polignac number, because 91371555253075 - 2³⁵ = 91337195514707 is a prime.

It is a super-2 number, since 2×91371555253075² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1521561237 + ... + 1521621286.

Almost surely, 2^{91371555253075} is an apocalyptic number.

91371555253075 is a deficient number, since it is larger than the sum of its proper divisors (22023511956213).

91371555253075 is a wasteful number, since it uses less digits than its factorization.

91371555253075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3043183734 (or 3043183729 counting only the distinct ones).

The product of its (nonzero) digits is 24806250, while the sum is 58.

The spelling of 91371555253075 in words is "ninety-one trillion, three hundred seventy-one billion, five hundred fifty-five million, two hundred fifty-three thousand, seventy-five".