50026438318013 has 4 divisors (see below), whose sum is σ = 50046966198300. Its totient is φ = 50005910437728.

The previous prime is 50026438317979. The next prime is 50026438318037. The reversal of 50026438318013 is 31081383462005.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45530605083769 + 4495833234244 = 6747637^2 + 2120338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50026438318013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50026438318313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10263936488 + ... + 10263941361.

It is an arithmetic number, because the mean of its divisors is an integer number (12511741549575).

Almost surely, 2^{50026438318013} is an apocalyptic number.

It is an amenable number.

50026438318013 is a deficient number, since it is larger than the sum of its proper divisors (20527880287).

50026438318013 is a wasteful number, since it uses less digits than its factorization.

50026438318013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20527880286.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 50026438318013 in words is "fifty trillion, twenty-six billion, four hundred thirty-eight million, three hundred eighteen thousand, thirteen".