91876460585 has 32 divisors (see below), whose sum is σ = 137919005952. Its totient is φ = 57201396480.

The previous prime is 91876460581. The next prime is 91876460623. The reversal of 91876460585 is 58506467819.

It is a happy number.

It is not a de Polignac number, because 91876460585 - 2² = 91876460581 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91876460581) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1627379 + ... + 1682888.

It is an arithmetic number, because the mean of its divisors is an integer number (4309968936).

Almost surely, 2^91876460585 is an apocalyptic number.

It is an amenable number.

91876460585 is a deficient number, since it is larger than the sum of its proper divisors (46042545367).

91876460585 is a wasteful number, since it uses less digits than its factorization.

91876460585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310353.

The product of its (nonzero) digits is 14515200, while the sum is 59.

The spelling of 91876460585 in words is "ninety-one billion, eight hundred seventy-six million, four hundred sixty thousand, five hundred eighty-five".