91702200920 has 64 divisors (see below), whose sum is σ = 226218528000. Its totient is φ = 33178654080.

The previous prime is 91702200881. The next prime is 91702200959. The reversal of 91702200920 is 2900220719.

It is an interprime number because it is at equal distance from previous prime (91702200881) and next prime (91702200959).

It is a congruent number.

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, 436094 + ... + 611213.

It is an arithmetic number, because the mean of its divisors is an integer number (3534664500).

Almost surely, 2^91702200920 is an apocalyptic number.

It is an amenable number.

91702200920 is an abundant number, since it is smaller than the sum of its proper divisors (134516327080).

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

91702200920 is a wasteful number, since it uses less digits than its factorization.

91702200920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047528 (or 1047524 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The spelling of 91702200920 in words is "ninety-one billion, seven hundred two million, two hundred thousand, nine hundred twenty".