51600865272 has 96 divisors (see below), whose sum is σ = 150136837200. Its totient is φ = 14716810240.

The previous prime is 51600865241. The next prime is 51600865273. The reversal of 51600865272 is 27256800615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51600865273) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 473247 + ... + 571982.

Almost surely, 2^51600865272 is an apocalyptic number.

It is an amenable number.

51600865272 is an abundant number, since it is smaller than the sum of its proper divisors (98535971928).

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

51600865272 is a wasteful number, since it uses less digits than its factorization.

51600865272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045277 (or 1045262 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 51600865272 in words is "fifty-one billion, six hundred million, eight hundred sixty-five thousand, two hundred seventy-two".