51257863763 has 2 divisors, whose sum is σ = 51257863764. Its totient is φ = 51257863762.

The previous prime is 51257863739. The next prime is 51257863831. The reversal of 51257863763 is 36736875215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51257863763 - 2¹⁶ = 51257798227 is a prime.

It is not a weakly prime, because it can be changed into another prime (51257863703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25628931881 + 25628931882.

It is an arithmetic number, because the mean of its divisors is an integer number (25628931882).

Almost surely, 2^51257863763 is an apocalyptic number.

51257863763 is a deficient number, since it is larger than the sum of its proper divisors (1).

51257863763 is an equidigital number, since it uses as much as digits as its factorization.

51257863763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6350400, while the sum is 53.

The spelling of 51257863763 in words is "fifty-one billion, two hundred fifty-seven million, eight hundred sixty-three thousand, seven hundred sixty-three".