91851777096 has 32 divisors (see below), whose sum is σ = 230323207200. Its totient is φ = 30524757120.

The previous prime is 91851777037. The next prime is 91851777097. The reversal of 91851777096 is 69077715819.

It is not an unprimeable number, because it can be changed into a prime (91851777097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5773261 + ... + 5789148.

It is an arithmetic number, because the mean of its divisors is an integer number (7197600225).

Almost surely, 2^91851777096 is an apocalyptic number.

It is an amenable number.

91851777096 is an abundant number, since it is smaller than the sum of its proper divisors (138471430104).

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

91851777096 is a wasteful number, since it uses less digits than its factorization.

91851777096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11562749 (or 11562745 counting only the distinct ones).

The product of its (nonzero) digits is 6667920, while the sum is 60.

The spelling of 91851777096 in words is "ninety-one billion, eight hundred fifty-one million, seven hundred seventy-seven thousand, ninety-six".