51761631120156 has 36 divisors (see below), whose sum is σ = 130843953890832. Its totient is φ = 17253606314304.

The previous prime is 51761631120107. The next prime is 51761631120233. The reversal of 51761631120156 is 65102113616715.

51761631120156 is a `hidden beast` number, since 5 + 1 + 7 + 6 + 1 + 631 + 1 + 2 + 0 + 1 + 5 + 6 = 666.

51761631120156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8947416 + ... + 13549151.

Almost surely, 2^{51761631120156} is an apocalyptic number.

It is an amenable number.

51761631120156 is an abundant number, since it is smaller than the sum of its proper divisors (79082322770676).

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

51761631120156 is a wasteful number, since it uses less digits than its factorization.

51761631120156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22560490 (or 22560485 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The spelling of 51761631120156 in words is "fifty-one trillion, seven hundred sixty-one billion, six hundred thirty-one million, one hundred twenty thousand, one hundred fifty-six".