51187376960 has 56 divisors (see below), whose sum is σ = 121969612296. Its totient is φ = 20461568000.

The previous prime is 51187376957. The next prime is 51187377001. The reversal of 51187376960 is 6967378115.

It can be written as a sum of positive squares in 4 ways, for example, as 1803870784 + 49383506176 = 42472^2 + 222224^2 .

It is a congruent number.

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, 445460 + ... + 548460.

It is an arithmetic number, because the mean of its divisors is an integer number (2178028791).

Almost surely, 2^51187376960 is an apocalyptic number.

It is an amenable number.

51187376960 is an abundant number, since it is smaller than the sum of its proper divisors (70782235336).

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

51187376960 is a wasteful number, since it uses less digits than its factorization.

51187376960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104571 (or 104561 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 51187376960 in words is "fifty-one billion, one hundred eighty-seven million, three hundred seventy-six thousand, nine hundred sixty".