51407323744 has 72 divisors (see below), whose sum is σ = 121791781440. Its totient is φ = 21271977216.

The previous prime is 51407323733. The next prime is 51407323783. The reversal of 51407323744 is 44732370415.

It is a junction number, because it is equal to n+sod(n) for n = 51407323697 and 51407323706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 519792 + ... + 610735.

It is an arithmetic number, because the mean of its divisors is an integer number (1691552520).

Almost surely, 2^51407323744 is an apocalyptic number.

It is an amenable number.

51407323744 is an abundant number, since it is smaller than the sum of its proper divisors (70384457696).

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

51407323744 is a wasteful number, since it uses less digits than its factorization.

51407323744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130580 (or 1130565 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 40.

The spelling of 51407323744 in words is "fifty-one billion, four hundred seven million, three hundred twenty-three thousand, seven hundred forty-four".