51611327736 has 16 divisors (see below), whose sum is σ = 129028319400. Its totient is φ = 17203775904.

The previous prime is 51611327707. The next prime is 51611327737. The reversal of 51611327736 is 63772311615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51611327737) 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, 1075235971 + ... + 1075236018.

Almost surely, 2^51611327736 is an apocalyptic number.

It is an amenable number.

51611327736 is an abundant number, since it is smaller than the sum of its proper divisors (77416991664).

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

51611327736 is a wasteful number, since it uses less digits than its factorization.

51611327736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150471998 (or 2150471994 counting only the distinct ones).

The product of its digits is 158760, while the sum is 42.

The spelling of 51611327736 in words is "fifty-one billion, six hundred eleven million, three hundred twenty-seven thousand, seven hundred thirty-six".