51044111136 has 72 divisors (see below), whose sum is σ = 148532464080. Its totient is φ = 16619008896.

The previous prime is 51044111113. The next prime is 51044111137. The reversal of 51044111136 is 63111144015.

51044111136 is a `hidden beast` number, since 510 + 4 + 4 + 1 + 11 + 136 = 666.

51044111136 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 (72).

It is not an unprimeable number, because it can be changed into a prime (51044111137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2048506 + ... + 2073273.

It is an arithmetic number, because the mean of its divisors is an integer number (2062950890).

Almost surely, 2^51044111136 is an apocalyptic number.

It is an amenable number.

51044111136 is an abundant number, since it is smaller than the sum of its proper divisors (97488352944).

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

51044111136 is a wasteful number, since it uses less digits than its factorization.

51044111136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4121838 (or 4121827 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The spelling of 51044111136 in words is "fifty-one billion, forty-four million, one hundred eleven thousand, one hundred thirty-six".