621431483030339 has 2 divisors, whose sum is σ = 621431483030340. Its totient is φ = 621431483030338.

The previous prime is 621431483030263. The next prime is 621431483030417. The reversal of 621431483030339 is 933030384134126.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 621431483030339 - 2²⁰ = 621431481981763 is a prime.

It is not a weakly prime, because it can be changed into another prime (621431483030539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310715741515169 + 310715741515170.

It is an arithmetic number, because the mean of its divisors is an integer number (310715741515170).

Almost surely, 2^{621431483030339} is an apocalyptic number.

621431483030339 is a deficient number, since it is larger than the sum of its proper divisors (1).

621431483030339 is an equidigital number, since it uses as much as digits as its factorization.

621431483030339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3359232, while the sum is 50.

The spelling of 621431483030339 in words is "six hundred twenty-one trillion, four hundred thirty-one billion, four hundred eighty-three million, thirty thousand, three hundred thirty-nine".