51086123738136 has 80 divisors (see below), whose sum is σ = 143091407008440. Its totient is φ = 17028355818240.

The previous prime is 51086123738099. The next prime is 51086123738197. The reversal of 51086123738136 is 63183732168015.

51086123738136 is a `hidden beast` number, since 5 + 1 + 0 + 8 + 612 + 3 + 7 + 3 + 8 + 13 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31539280 + ... + 33119456.

Almost surely, 2^{51086123738136} is an apocalyptic number.

It is an amenable number.

51086123738136 is an abundant number, since it is smaller than the sum of its proper divisors (92005283270304).

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

51086123738136 is a wasteful number, since it uses less digits than its factorization.

51086123738136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630086 (or 1630073 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 51086123738136 in words is "fifty-one trillion, eighty-six billion, one hundred twenty-three million, seven hundred thirty-eight thousand, one hundred thirty-six".