91327490604 has 120 divisors (see below), whose sum is σ = 281656962048. Its totient is φ = 25251821280.

The previous prime is 91327490509. The next prime is 91327490659. The reversal of 91327490604 is 40609472319.

It is a happy number.

91327490604 is a `hidden beast` number, since 9 + 1 + 32 + 7 + 4 + 9 + 0 + 604 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 91327490604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 579174 + ... + 719789.

Almost surely, 2^91327490604 is an apocalyptic number.

It is an amenable number.

91327490604 is an abundant number, since it is smaller than the sum of its proper divisors (190329471444).

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

91327490604 is a wasteful number, since it uses less digits than its factorization.

91327490604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299017 (or 1299006 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 91327490604 in words is "ninety-one billion, three hundred twenty-seven million, four hundred ninety thousand, six hundred four".