51889261776 has 80 divisors (see below), whose sum is σ = 147050588160. Its totient is φ = 15636146560.

The previous prime is 51889261751. The next prime is 51889261813. The reversal of 51889261776 is 67716298815.

It is a congruent number.

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, 180000 + ... + 369023.

It is an arithmetic number, because the mean of its divisors is an integer number (1838132352).

Almost surely, 2^51889261776 is an apocalyptic number.

It is an amenable number.

51889261776 is an abundant number, since it is smaller than the sum of its proper divisors (95161326384).

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

51889261776 is a wasteful number, since it uses less digits than its factorization.

51889261776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549224 (or 549218 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 60.

The spelling of 51889261776 in words is "fifty-one billion, eight hundred eighty-nine million, two hundred sixty-one thousand, seven hundred seventy-six".