51287542788 has 24 divisors (see below), whose sum is σ = 119674777600. Its totient is φ = 17095298400.

The previous prime is 51287542759. The next prime is 51287542819. The reversal of 51287542788 is 88724578215.

It is a happy number.

51287542788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 527613 + ... + 617211.

Almost surely, 2^51287542788 is an apocalyptic number.

It is an amenable number.

51287542788 is an abundant number, since it is smaller than the sum of its proper divisors (68387234812).

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

51287542788 is a wasteful number, since it uses less digits than its factorization.

51287542788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137307 (or 137305 counting only the distinct ones).

The product of its digits is 10035200, while the sum is 57.

The spelling of 51287542788 in words is "fifty-one billion, two hundred eighty-seven million, five hundred forty-two thousand, seven hundred eighty-eight".