91955969125 has 16 divisors (see below), whose sum is σ = 115266640320. Its totient is φ = 73240678800.

The previous prime is 91955969081. The next prime is 91955969129. The reversal of 91955969125 is 52196955919.

It is not a de Polignac number, because 91955969125 - 2²⁵ = 91922414693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91955969129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1591995 + ... + 1648744.

It is an arithmetic number, because the mean of its divisors is an integer number (7204165020).

Almost surely, 2^91955969125 is an apocalyptic number.

It is an amenable number.

91955969125 is a deficient number, since it is larger than the sum of its proper divisors (23310671195).

91955969125 is a wasteful number, since it uses less digits than its factorization.

91955969125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240981 (or 3240971 counting only the distinct ones).

The product of its digits is 9841500, while the sum is 61.

The spelling of 91955969125 in words is "ninety-one billion, nine hundred fifty-five million, nine hundred sixty-nine thousand, one hundred twenty-five".