51805744763 has 2 divisors, whose sum is σ = 51805744764. Its totient is φ = 51805744762.

The previous prime is 51805744741. The next prime is 51805744769. The reversal of 51805744763 is 36744750815.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51805744763 - 2²⁴ = 51788967547 is a prime.

It is not a weakly prime, because it can be changed into another prime (51805744769) 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, 25902872381 + 25902872382.

It is an arithmetic number, because the mean of its divisors is an integer number (25902872382).

Almost surely, 2^51805744763 is an apocalyptic number.

51805744763 is a deficient number, since it is larger than the sum of its proper divisors (1).

51805744763 is an equidigital number, since it uses as much as digits as its factorization.

51805744763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 51805744763 in words is "fifty-one billion, eight hundred five million, seven hundred forty-four thousand, seven hundred sixty-three".