405086679629 has 2 divisors, whose sum is σ = 405086679630. Its totient is φ = 405086679628.

The previous prime is 405086679589. The next prime is 405086679667. The reversal of 405086679629 is 926976680504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396534684100 + 8551995529 = 629710^2 + 92477^2 .

It is a cyclic number.

It is not a de Polignac number, because 405086679629 - 2⁸ = 405086679373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405086679029) 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, 202543339814 + 202543339815.

It is an arithmetic number, because the mean of its divisors is an integer number (202543339815).

Almost surely, 2^405086679629 is an apocalyptic number.

It is an amenable number.

405086679629 is a deficient number, since it is larger than the sum of its proper divisors (1).

405086679629 is an equidigital number, since it uses as much as digits as its factorization.

405086679629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39191040, while the sum is 62.

The spelling of 405086679629 in words is "four hundred five billion, eighty-six million, six hundred seventy-nine thousand, six hundred twenty-nine".