51063881136 has 20 divisors (see below), whose sum is σ = 131915026392. Its totient is φ = 17021293696.

The previous prime is 51063881051. The next prime is 51063881137. The reversal of 51063881136 is 63118836015.

It is not an unprimeable number, because it can be changed into a prime (51063881137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531915381 + ... + 531915476.

Almost surely, 2^51063881136 is an apocalyptic number.

It is an amenable number.

51063881136 is an abundant number, since it is smaller than the sum of its proper divisors (80851145256).

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

51063881136 is a wasteful number, since it uses less digits than its factorization.

51063881136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063830868 (or 1063830862 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 51063881136 in words is "fifty-one billion, sixty-three million, eight hundred eighty-one thousand, one hundred thirty-six".