91399670969804 has 12 divisors (see below), whose sum is σ = 159955443629184. Its totient is φ = 45698115647184.

The previous prime is 91399670969801. The next prime is 91399670969821. The reversal of 91399670969804 is 40896907699319.

It is not an unprimeable number, because it can be changed into a prime (91399670969801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429839852 + ... + 430052435.

It is an arithmetic number, because the mean of its divisors is an integer number (13329620302432).

Almost surely, 2^{91399670969804} is an apocalyptic number.

It is an amenable number.

91399670969804 is a deficient number, since it is larger than the sum of its proper divisors (68555772659380).

91399670969804 is a wasteful number, since it uses less digits than its factorization.

91399670969804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859918864 (or 859918862 counting only the distinct ones).

The product of its (nonzero) digits is 1428513408, while the sum is 80.

The spelling of 91399670969804 in words is "ninety-one trillion, three hundred ninety-nine billion, six hundred seventy million, nine hundred sixty-nine thousand, eight hundred four".