91892190752 has 24 divisors (see below), whose sum is σ = 183202790400. Its totient is φ = 45364497984.

The previous prime is 91892190703. The next prime is 91892190769. The reversal of 91892190752 is 25709129819.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 91892190694 and 91892190703.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18172352 + ... + 18177407.

It is an arithmetic number, because the mean of its divisors is an integer number (7633449600).

Almost surely, 2^91892190752 is an apocalyptic number.

It is an amenable number.

91892190752 is a deficient number, since it is larger than the sum of its proper divisors (91310599648).

91892190752 is a wasteful number, since it uses less digits than its factorization.

91892190752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36349848 (or 36349840 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 53.

The spelling of 91892190752 in words is "ninety-one billion, eight hundred ninety-two million, one hundred ninety thousand, seven hundred fifty-two".