91793862992 has 40 divisors (see below), whose sum is σ = 196707967176. Its totient is φ = 41221357056.

The previous prime is 91793862971. The next prime is 91793863001. The reversal of 91793862992 is 29926839719.

It can be written as a sum of positive squares in 4 ways, for example, as 3118552336 + 88675310656 = 55844^2 + 297784^2 .

It is a super-2 number, since 2×91793862992² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5956043 + ... + 5971434.

Almost surely, 2^91793862992 is an apocalyptic number.

It is an amenable number.

91793862992 is an abundant number, since it is smaller than the sum of its proper divisors (104914104184).

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

91793862992 is a wasteful number, since it uses less digits than its factorization.

91793862992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11927535 (or 11927529 counting only the distinct ones).

The product of its digits is 26453952, while the sum is 65.

The spelling of 91793862992 in words is "ninety-one billion, seven hundred ninety-three million, eight hundred sixty-two thousand, nine hundred ninety-two".