91792581057568 has 48 divisors (see below), whose sum is σ = 183218742564480. Its totient is φ = 45262199114496.

The previous prime is 91792581057559. The next prime is 91792581057601. The reversal of 91792581057568 is 86575018529719.

It is a self number, because there is not a number n which added to its sum of digits gives 91792581057568.

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, 19127530 + ... + 23440297.

It is an arithmetic number, because the mean of its divisors is an integer number (3817057136760).

Almost surely, 2^{91792581057568} is an apocalyptic number.

It is an amenable number.

91792581057568 is a deficient number, since it is larger than the sum of its proper divisors (91426161506912).

91792581057568 is a wasteful number, since it uses less digits than its factorization.

91792581057568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42568769 (or 42568761 counting only the distinct ones).

The product of its (nonzero) digits is 381024000, while the sum is 73.

The spelling of 91792581057568 in words is "ninety-one trillion, seven hundred ninety-two billion, five hundred eighty-one million, fifty-seven thousand, five hundred sixty-eight".