91502868672 has 112 divisors (see below), whose sum is σ = 269815868800. Its totient is φ = 30408618240.

The previous prime is 91502868643. The next prime is 91502868689. The reversal of 91502868672 is 27686820519.

91502868672 is a `hidden beast` number, since 9 + 1 + 502 + 8 + 68 + 6 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491979 + ... + 651957.

Almost surely, 2^91502868672 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 91502868672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134907934400).

91502868672 is an abundant number, since it is smaller than the sum of its proper divisors (178313000128).

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

91502868672 is a wasteful number, since it uses less digits than its factorization.

91502868672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160331 (or 160315 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 91502868672 in words is "ninety-one billion, five hundred two million, eight hundred sixty-eight thousand, six hundred seventy-two".