51273646763 has 2 divisors, whose sum is σ = 51273646764. Its totient is φ = 51273646762.

The previous prime is 51273646757. The next prime is 51273646789. The reversal of 51273646763 is 36764637215.

51273646763 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51273646763 - 2³⁴ = 34093777579 is a prime.

It is not a weakly prime, because it can be changed into another prime (51273646063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25636823381 + 25636823382.

It is an arithmetic number, because the mean of its divisors is an integer number (25636823382).

Almost surely, 2^51273646763 is an apocalyptic number.

51273646763 is a deficient number, since it is larger than the sum of its proper divisors (1).

51273646763 is an equidigital number, since it uses as much as digits as its factorization.

51273646763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 50.

The spelling of 51273646763 in words is "fifty-one billion, two hundred seventy-three million, six hundred forty-six thousand, seven hundred sixty-three".