408979353577 has 2 divisors, whose sum is σ = 408979353578. Its totient is φ = 408979353576.

The previous prime is 408979353533. The next prime is 408979353623. The reversal of 408979353577 is 775353979804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 359779233856 + 49200119721 = 599816^2 + 221811^2 .

It is a cyclic number.

It is not a de Polignac number, because 408979353577 - 2⁷ = 408979353449 is a prime.

It is a super-2 number, since 2×408979353577² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (408979353877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204489676788 + 204489676789.

It is an arithmetic number, because the mean of its divisors is an integer number (204489676789).

Almost surely, 2^408979353577 is an apocalyptic number.

It is an amenable number.

408979353577 is a deficient number, since it is larger than the sum of its proper divisors (1).

408979353577 is an equidigital number, since it uses as much as digits as its factorization.

408979353577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200037600, while the sum is 67.

The spelling of 408979353577 in words is "four hundred eight billion, nine hundred seventy-nine million, three hundred fifty-three thousand, five hundred seventy-seven".