51047600866 has 16 divisors (see below), whose sum is σ = 78276948480. Its totient is φ = 24959815120.

The previous prime is 51047600759. The next prime is 51047600869. The reversal of 51047600866 is 66800674015.

It is a happy number.

51047600866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51047600869) 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, 1109941 + ... + 1155016.

It is an arithmetic number, because the mean of its divisors is an integer number (4892309280).

Almost surely, 2^51047600866 is an apocalyptic number.

51047600866 is a deficient number, since it is larger than the sum of its proper divisors (27229347614).

51047600866 is a wasteful number, since it uses less digits than its factorization.

51047600866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265209.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 51047600866 in words is "fifty-one billion, forty-seven million, six hundred thousand, eight hundred sixty-six".