51559179715776 has 112 divisors (see below), whose sum is σ = 137937014691840. Its totient is φ = 16995955829760.

The previous prime is 51559179715663. The next prime is 51559179715819. The reversal of 51559179715776 is 67751797195515.

It is a junction number, because it is equal to n+sod(n) for n = 51559179715698 and 51559179715707.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2076385 + ... + 10364831.

It is an arithmetic number, because the mean of its divisors is an integer number (1231580488320).

Almost surely, 2^{51559179715776} 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 51559179715776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68968507345920).

51559179715776 is an abundant number, since it is smaller than the sum of its proper divisors (86377834976064).

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

51559179715776 is a wasteful number, since it uses less digits than its factorization.

51559179715776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8288822 (or 8288812 counting only the distinct ones).

The product of its digits is 729303750, while the sum is 75.

The spelling of 51559179715776 in words is "fifty-one trillion, five hundred fifty-nine billion, one hundred seventy-nine million, seven hundred fifteen thousand, seven hundred seventy-six".