91014968428 has 12 divisors (see below), whose sum is σ = 159635737800. Its totient is φ = 45404757632.

The previous prime is 91014968411. The next prime is 91014968431. The reversal of 91014968428 is 82486941019.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 25679653 + ... + 25683196.

It is an arithmetic number, because the mean of its divisors is an integer number (13302978150).

Almost surely, 2^91014968428 is an apocalyptic number.

It is an amenable number.

91014968428 is a deficient number, since it is larger than the sum of its proper divisors (68620769372).

91014968428 is a wasteful number, since it uses less digits than its factorization.

91014968428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51363296 (or 51363294 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 52.

The spelling of 91014968428 in words is "ninety-one billion, fourteen million, nine hundred sixty-eight thousand, four hundred twenty-eight".