53117879844 has 24 divisors (see below), whose sum is σ = 126280244160. Its totient is φ = 17371885024.

The previous prime is 53117879827. The next prime is 53117879909. The reversal of 53117879844 is 44897871135.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41758704 + ... + 41759975.

It is an arithmetic number, because the mean of its divisors is an integer number (5261676840).

Almost surely, 2^53117879844 is an apocalyptic number.

It is an amenable number.

53117879844 is an abundant number, since it is smaller than the sum of its proper divisors (73162364316).

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

53117879844 is a wasteful number, since it uses less digits than its factorization.

53117879844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83518739 (or 83518737 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 57.

The spelling of 53117879844 in words is "fifty-three billion, one hundred seventeen million, eight hundred seventy-nine thousand, eight hundred forty-four".