91476506304 has 140 divisors (see below), whose sum is σ = 272284676664. Its totient is φ = 30491748864.

The previous prime is 91476506291. The next prime is 91476506309. The reversal of 91476506304 is 40360567419.

91476506304 is a `hidden beast` number, since 9 + 1 + 4 + 7 + 6 + 5 + 0 + 630 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 91476506304.

It is not an unprimeable number, because it can be changed into a prime (91476506309) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 1223404 + ... + 1296020.

Almost surely, 2^91476506304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91476506304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136142338332).

91476506304 is an abundant number, since it is smaller than the sum of its proper divisors (180808170360).

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

91476506304 is an frugal number, since it uses more digits than its factorization.

91476506304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72656 (or 72622 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 91476506304 in words is "ninety-one billion, four hundred seventy-six million, five hundred six thousand, three hundred four".