51870575960640 has 168 divisors, whose sum is σ = 182764709677368. Its totient is φ = 13494783959040.

The previous prime is 51870575960561. The next prime is 51870575960647. The reversal of 51870575960640 is 4606957507815.

51870575960640 is a `hidden beast` number, since 5 + 18 + 7 + 0 + 5 + 7 + 5 + 9 + 606 + 4 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3761148239424 + 48109427721216 = 1939368^2 + 6936096^2 .

It is not an unprimeable number, because it can be changed into a prime (51870575960647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219523587 + ... + 219759746.

It is an arithmetic number, because the mean of its divisors is an integer number (1087885176651).

Almost surely, 2^{51870575960640} is an apocalyptic number.

It is an amenable number.

51870575960640 is an abundant number, since it is smaller than the sum of its proper divisors (130894133716728).

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

51870575960640 is a wasteful number, since it uses less digits than its factorization.

51870575960640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439283397 (or 439283384 counting only the distinct ones).

The product of its (nonzero) digits is 63504000, while the sum is 63.

The spelling of 51870575960640 in words is "fifty-one trillion, eight hundred seventy billion, five hundred seventy-five million, nine hundred sixty thousand, six hundred forty".