408046154578667 has 16 divisors (see below), whose sum is σ = 460183419985920. Its totient is φ = 358451476588800.

The previous prime is 408046154578633. The next prime is 408046154578693. The reversal of 408046154578667 is 766875451640804.

It is a cyclic number.

It is not a de Polignac number, because 408046154578667 - 2⁶ = 408046154578603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 408046154578667.

It is not an unprimeable number, because it can be changed into a prime (408046156578667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 888787067 + ... + 889246052.

It is an arithmetic number, because the mean of its divisors is an integer number (28761463749120).

Almost surely, 2^{408046154578667} is an apocalyptic number.

408046154578667 is a deficient number, since it is larger than the sum of its proper divisors (52137265407253).

408046154578667 is a wasteful number, since it uses less digits than its factorization.

408046154578667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778033834.

The product of its (nonzero) digits is 1083801600, while the sum is 71.

The spelling of 408046154578667 in words is "four hundred eight trillion, forty-six billion, one hundred fifty-four million, five hundred seventy-eight thousand, six hundred sixty-seven".