51593697792 has 1120 divisors, whose sum is σ = 200370508800. Its totient is φ = 13168189440.

The previous prime is 51593697769. The next prime is 51593697809. The reversal of 51593697792 is 29779639515.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 1664312817 + ... + 1664312847.

It is an arithmetic number, because the mean of its divisors is an integer number (178902240).

Almost surely, 2^51593697792 is an apocalyptic number.

51593697792 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51593697792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100185254400).

51593697792 is an abundant number, since it is smaller than the sum of its proper divisors (148776811008).

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

51593697792 is an frugal number, since it uses more digits than its factorization.

51593697792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 56 counting only the distinct ones).

The product of its digits is 32148900, while the sum is 63.

The spelling of 51593697792 in words is "fifty-one billion, five hundred ninety-three million, six hundred ninety-seven thousand, seven hundred ninety-two".