316421195639 has 2 divisors, whose sum is σ = 316421195640. Its totient is φ = 316421195638.

The previous prime is 316421195621. The next prime is 316421195707. The reversal of 316421195639 is 936591124613.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 316421195639 - 2²⁰ = 316420147063 is a prime.

It is a super-2 number, since 2×316421195639² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316421125639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158210597819 + 158210597820.

It is an arithmetic number, because the mean of its divisors is an integer number (158210597820).

Almost surely, 2^316421195639 is an apocalyptic number.

316421195639 is a deficient number, since it is larger than the sum of its proper divisors (1).

316421195639 is an equidigital number, since it uses as much as digits as its factorization.

316421195639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1049760, while the sum is 50.

The spelling of 316421195639 in words is "three hundred sixteen billion, four hundred twenty-one million, one hundred ninety-five thousand, six hundred thirty-nine".