91592638080 has 256 divisors, whose sum is σ = 312858806400. Its totient is φ = 22710321152.

The previous prime is 91592638079. The next prime is 91592638091. The reversal of 91592638080 is 8083629519.

It is a happy number.

It is a super-2 number, since 2×91592638080² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2692216 + ... + 2726024.

Almost surely, 2^91592638080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91592638080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156429403200).

91592638080 is an abundant number, since it is smaller than the sum of its proper divisors (221266168320).

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

91592638080 is a wasteful number, since it uses less digits than its factorization.

91592638080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33931 (or 33919 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 51.

The spelling of 91592638080 in words is "ninety-one billion, five hundred ninety-two million, six hundred thirty-eight thousand, eighty".