51596917140 has 48 divisors (see below), whose sum is σ = 144586330560. Its totient is φ = 13748229120.

The previous prime is 51596917103. The next prime is 51596917171. The reversal of 51596917140 is 4171969515.

It is a self number, because there is not a number n which added to its sum of digits gives 51596917140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265981 + ... + 417060.

It is an arithmetic number, because the mean of its divisors is an integer number (3012215220).

Almost surely, 2^51596917140 is an apocalyptic number.

It is an amenable number.

51596917140 is an abundant number, since it is smaller than the sum of its proper divisors (92989413420).

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

51596917140 is a wasteful number, since it uses less digits than its factorization.

51596917140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684312 (or 684310 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 48.

The spelling of 51596917140 in words is "fifty-one billion, five hundred ninety-six million, nine hundred seventeen thousand, one hundred forty".