91955728196 has 12 divisors (see below), whose sum is σ = 160925427600. Its totient is φ = 45977034600.

The previous prime is 91955728127. The next prime is 91955728253. The reversal of 91955728196 is 69182755919.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89171 + ... + 438021.

It is an arithmetic number, because the mean of its divisors is an integer number (13410452300).

Almost surely, 2^91955728196 is an apocalyptic number.

It is an amenable number.

91955728196 is a deficient number, since it is larger than the sum of its proper divisors (68969699404).

91955728196 is a wasteful number, since it uses less digits than its factorization.

91955728196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414754 (or 414752 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 62.

The spelling of 91955728196 in words is "ninety-one billion, nine hundred fifty-five million, seven hundred twenty-eight thousand, one hundred ninety-six".