91379959005 has 16 divisors (see below), whose sum is σ = 146211785280. Its totient is φ = 48734694528.

The previous prime is 91379958973. The next prime is 91379959039. The reversal of 91379959005 is 50095997319.

It is not a de Polignac number, because 91379959005 - 2⁵ = 91379958973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 875706 + ... + 974484.

It is an arithmetic number, because the mean of its divisors is an integer number (9138236580).

Almost surely, 2^91379959005 is an apocalyptic number.

It is an amenable number.

91379959005 is a deficient number, since it is larger than the sum of its proper divisors (54831826275).

91379959005 is a wasteful number, since it uses less digits than its factorization.

91379959005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160460.

The product of its (nonzero) digits is 3444525, while the sum is 57.

The spelling of 91379959005 in words is "ninety-one billion, three hundred seventy-nine million, nine hundred fifty-nine thousand, five".