91936792079424 has 448 divisors, whose sum is σ = 297218331648000. Its totient is φ = 27757600266240.

The previous prime is 91936792079423. The next prime is 91936792079467. The reversal of 91936792079424 is 42497029763919.

91936792079424 is a `hidden beast` number, since 9 + 19 + 36 + 7 + 92 + 0 + 79 + 424 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (91936792079423) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 83932582 + ... + 85020890.

It is an arithmetic number, because the mean of its divisors is an integer number (663433776000).

Almost surely, 2^{91936792079424} 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 91936792079424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148609165824000).

91936792079424 is an abundant number, since it is smaller than the sum of its proper divisors (205281539568576).

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

91936792079424 is a wasteful number, since it uses less digits than its factorization.

91936792079424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088463 (or 1088447 counting only the distinct ones).

The product of its (nonzero) digits is 370355328, while the sum is 72.

The spelling of 91936792079424 in words is "ninety-one trillion, nine hundred thirty-six billion, seven hundred ninety-two million, seventy-nine thousand, four hundred twenty-four".