51269525880 has 64 divisors (see below), whose sum is σ = 153949692960. Its totient is φ = 13659330048.

The previous prime is 51269525851. The next prime is 51269525897. The reversal of 51269525880 is 8852596215.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64287 + ... + 326606.

Almost surely, 2^51269525880 is an apocalyptic number.

It is an amenable number.

51269525880 is an abundant number, since it is smaller than the sum of its proper divisors (102680167080).

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

51269525880 is a wasteful number, since it uses less digits than its factorization.

51269525880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392000 (or 391996 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 51.

The spelling of 51269525880 in words is "fifty-one billion, two hundred sixty-nine million, five hundred twenty-five thousand, eight hundred eighty".