50403765008813 has 2 divisors, whose sum is σ = 50403765008814. Its totient is φ = 50403765008812.

The previous prime is 50403765008749. The next prime is 50403765008879. The reversal of 50403765008813 is 31880056730405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46424845162084 + 3978919846729 = 6813578^2 + 1994723^2 .

It is a cyclic number.

It is not a de Polignac number, because 50403765008813 - 2⁶ = 50403765008749 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50403765208813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25201882504406 + 25201882504407.

It is an arithmetic number, because the mean of its divisors is an integer number (25201882504407).

Almost surely, 2^{50403765008813} is an apocalyptic number.

It is an amenable number.

50403765008813 is a deficient number, since it is larger than the sum of its proper divisors (1).

50403765008813 is an equidigital number, since it uses as much as digits as its factorization.

50403765008813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 50403765008813 in words is "fifty trillion, four hundred three billion, seven hundred sixty-five million, eight thousand, eight hundred thirteen".