91900915682 has 16 divisors (see below), whose sum is σ = 138423697632. Its totient is φ = 45759876960.

The previous prime is 91900915679. The next prime is 91900915693. The reversal of 91900915682 is 28651900919.

It is a self number, because there is not a number n which added to its sum of digits gives 91900915682.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920873 + ... + 1015779.

It is an arithmetic number, because the mean of its divisors is an integer number (8651481102).

Almost surely, 2^91900915682 is an apocalyptic number.

91900915682 is a deficient number, since it is larger than the sum of its proper divisors (46522781950).

91900915682 is a wasteful number, since it uses less digits than its factorization.

91900915682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96913.

The product of its (nonzero) digits is 349920, while the sum is 50.

The spelling of 91900915682 in words is "ninety-one billion, nine hundred million, nine hundred fifteen thousand, six hundred eighty-two".