51260769984 has 28 divisors (see below), whose sum is σ = 135627454424. Its totient is φ = 17086923264.

The previous prime is 51260769979. The next prime is 51260770031. The reversal of 51260769984 is 48996706215.

51260769984 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 3 ways as a sum of consecutive naturals, for example, 133491397 + ... + 133491780.

It is an arithmetic number, because the mean of its divisors is an integer number (4843837658).

Almost surely, 2^51260769984 is an apocalyptic number.

It is an amenable number.

51260769984 is an abundant number, since it is smaller than the sum of its proper divisors (84366684440).

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

51260769984 is a wasteful number, since it uses less digits than its factorization.

51260769984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266983192 (or 266983182 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 51260769984 in words is "fifty-one billion, two hundred sixty million, seven hundred sixty-nine thousand, nine hundred eighty-four".