51767976960 has 704 divisors, whose sum is σ = 213946544640. Its totient is φ = 11625431040.

The previous prime is 51767976947. The next prime is 51767976977. The reversal of 51767976960 is 6967976715.

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 63 ways as a sum of consecutive naturals, for example, 59028042 + ... + 59028918.

Almost surely, 2^51767976960 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 51767976960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106973272320).

51767976960 is an abundant number, since it is smaller than the sum of its proper divisors (162178567680).

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

51767976960 is a wasteful number, since it uses less digits than its factorization.

51767976960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979 (or 955 counting only the distinct ones).

The product of its (nonzero) digits is 30005640, while the sum is 63.

The spelling of 51767976960 in words is "fifty-one billion, seven hundred sixty-seven million, nine hundred seventy-six thousand, nine hundred sixty".