51747657206 has 16 divisors (see below), whose sum is σ = 88713398016. Its totient is φ = 22176785256.

The previous prime is 51747657187. The next prime is 51747657209. The reversal of 51747657206 is 60275674715.

51747657206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51747657209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539285 + ... + 627951.

It is an arithmetic number, because the mean of its divisors is an integer number (5544587376).

Almost surely, 2^51747657206 is an apocalyptic number.

51747657206 is a deficient number, since it is larger than the sum of its proper divisors (36965740810).

51747657206 is a wasteful number, since it uses less digits than its factorization.

51747657206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130363.

The product of its (nonzero) digits is 2469600, while the sum is 50.

The spelling of 51747657206 in words is "fifty-one billion, seven hundred forty-seven million, six hundred fifty-seven thousand, two hundred six".