408007672808 has 8 divisors (see below), whose sum is σ = 765014386530. Its totient is φ = 204003836400.

The previous prime is 408007672801. The next prime is 408007672879. The reversal of 408007672808 is 808276700804.

It can be written as a sum of positive squares in only one way, i.e., 404620665604 + 3387007204 = 636098^2 + 58198^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×408007672808² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (408007672801) 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, 25500479543 + ... + 25500479558.

Almost surely, 2^408007672808 is an apocalyptic number.

It is an amenable number.

408007672808 is a deficient number, since it is larger than the sum of its proper divisors (357006713722).

408007672808 is a wasteful number, since it uses less digits than its factorization.

408007672808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51000959107 (or 51000959103 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 50.

The spelling of 408007672808 in words is "four hundred eight billion, seven million, six hundred seventy-two thousand, eight hundred eight".