91944425514 has 16 divisors (see below), whose sum is σ = 191884018752. Its totient is φ = 29315613888.

The previous prime is 91944425513. The next prime is 91944425527. The reversal of 91944425514 is 41552444919.

It is not an unprimeable number, because it can be changed into a prime (91944425513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333131839 + ... + 333132114.

It is an arithmetic number, because the mean of its divisors is an integer number (11992751172).

Almost surely, 2^91944425514 is an apocalyptic number.

91944425514 is an abundant number, since it is smaller than the sum of its proper divisors (99939593238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91944425514 is a wasteful number, since it uses less digits than its factorization.

91944425514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666263981.

The product of its digits is 1036800, while the sum is 48.

The spelling of 91944425514 in words is "ninety-one billion, nine hundred forty-four million, four hundred twenty-five thousand, five hundred fourteen".