51534642760 has 16 divisors (see below), whose sum is σ = 115952946300. Its totient is φ = 20613857088.

The previous prime is 51534642751. The next prime is 51534642851. The reversal of 51534642760 is 6724643515.

It can be written as a sum of positive squares in 2 ways, for example, as 47552780356 + 3981862404 = 218066^2 + 63102^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644182995 + ... + 644183074.

Almost surely, 2^51534642760 is an apocalyptic number.

It is an amenable number.

51534642760 is an abundant number, since it is smaller than the sum of its proper divisors (64418303540).

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

51534642760 is a wasteful number, since it uses less digits than its factorization.

51534642760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288366080 (or 1288366076 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 51534642760 in words is "fifty-one billion, five hundred thirty-four million, six hundred forty-two thousand, seven hundred sixty".