406385330395679 has 2 divisors, whose sum is σ = 406385330395680. Its totient is φ = 406385330395678.

The previous prime is 406385330395669. The next prime is 406385330395727. The reversal of 406385330395679 is 976593033583604.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406385330395679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406385330395619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203192665197839 + 203192665197840.

It is an arithmetic number, because the mean of its divisors is an integer number (203192665197840).

Almost surely, 2^{406385330395679} is an apocalyptic number.

406385330395679 is a deficient number, since it is larger than the sum of its proper divisors (1).

406385330395679 is an equidigital number, since it uses as much as digits as its factorization.

406385330395679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1322697600, while the sum is 71.

The spelling of 406385330395679 in words is "four hundred six trillion, three hundred eighty-five billion, three hundred thirty million, three hundred ninety-five thousand, six hundred seventy-nine".