50405069131 has 2 divisors, whose sum is σ = 50405069132. Its totient is φ = 50405069130.

The previous prime is 50405069123. The next prime is 50405069147. The reversal of 50405069131 is 13196050405.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50405069131 - 2³ = 50405069123 is a prime.

It is a super-2 number, since 2×50405069131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50405069161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25202534565 + 25202534566.

It is an arithmetic number, because the mean of its divisors is an integer number (25202534566).

Almost surely, 2^50405069131 is an apocalyptic number.

50405069131 is a deficient number, since it is larger than the sum of its proper divisors (1).

50405069131 is an equidigital number, since it uses as much as digits as its factorization.

50405069131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 34.

The spelling of 50405069131 in words is "fifty billion, four hundred five million, sixty-nine thousand, one hundred thirty-one".