91905740112 has 80 divisors (see below), whose sum is σ = 247801282560. Its totient is φ = 29296730496.

The previous prime is 91905740063. The next prime is 91905740141. The reversal of 91905740112 is 21104750919.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8260089 + ... + 8271207.

It is an arithmetic number, because the mean of its divisors is an integer number (3097516032).

Almost surely, 2^91905740112 is an apocalyptic number.

91905740112 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

91905740112 is an abundant number, since it is smaller than the sum of its proper divisors (155895542448).

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

91905740112 is a wasteful number, since it uses less digits than its factorization.

91905740112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18640 (or 18634 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 39.

The spelling of 91905740112 in words is "ninety-one billion, nine hundred five million, seven hundred forty thousand, one hundred twelve".