91478507704 has 16 divisors (see below), whose sum is σ = 171607524120. Its totient is φ = 45716501280.

The previous prime is 91478507651. The next prime is 91478507717. The reversal of 91478507704 is 40770587419.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2826979 + ... + 2859154.

Almost surely, 2^91478507704 is an apocalyptic number.

It is an amenable number.

91478507704 is a deficient number, since it is larger than the sum of its proper divisors (80129016416).

91478507704 is a wasteful number, since it uses less digits than its factorization.

91478507704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5688150 (or 5688146 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 52.

The spelling of 91478507704 in words is "ninety-one billion, four hundred seventy-eight million, five hundred seven thousand, seven hundred four".