51136510360 has 64 divisors (see below), whose sum is σ = 126929890080. Its totient is φ = 18420648960.

The previous prime is 51136510333. The next prime is 51136510361. The reversal of 51136510360 is 6301563115.

It is a super-2 number, since 2×51136510360² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51136510361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1177942 + ... + 1220581.

Almost surely, 2^51136510360 is an apocalyptic number.

It is an amenable number.

51136510360 is an abundant number, since it is smaller than the sum of its proper divisors (75793379720).

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

51136510360 is a wasteful number, since it uses less digits than its factorization.

51136510360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398588 (or 2398584 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The spelling of 51136510360 in words is "fifty-one billion, one hundred thirty-six million, five hundred ten thousand, three hundred sixty".