646411132139 has 2 divisors, whose sum is σ = 646411132140. Its totient is φ = 646411132138.

The previous prime is 646411132123. The next prime is 646411132163. The reversal of 646411132139 is 931231114646.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 646411132139 - 2⁴ = 646411132123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 646411132096 and 646411132105.

It is not a weakly prime, because it can be changed into another prime (646411132039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323205566069 + 323205566070.

It is an arithmetic number, because the mean of its divisors is an integer number (323205566070).

Almost surely, 2^646411132139 is an apocalyptic number.

646411132139 is a deficient number, since it is larger than the sum of its proper divisors (1).

646411132139 is an equidigital number, since it uses as much as digits as its factorization.

646411132139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 41.

The spelling of 646411132139 in words is "six hundred forty-six billion, four hundred eleven million, one hundred thirty-two thousand, one hundred thirty-nine".