51757884940 has 24 divisors (see below), whose sum is σ = 109653435360. Its totient is φ = 20519939328.

The previous prime is 51757884889. The next prime is 51757884943. The reversal of 51757884940 is 4948875715.

It is not an unprimeable number, because it can be changed into a prime (51757884943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11448600 + ... + 11453119.

It is an arithmetic number, because the mean of its divisors is an integer number (4568893140).

Almost surely, 2^51757884940 is an apocalyptic number.

It is an amenable number.

51757884940 is an abundant number, since it is smaller than the sum of its proper divisors (57895550420).

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

51757884940 is a wasteful number, since it uses less digits than its factorization.

51757884940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22901841 (or 22901839 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 58.

The spelling of 51757884940 in words is "fifty-one billion, seven hundred fifty-seven million, eight hundred eighty-four thousand, nine hundred forty".