8408191313672 has 16 divisors (see below), whose sum is σ = 15783335190060. Its totient is φ = 4199301929664.

The previous prime is 8408191313653. The next prime is 8408191313713. The reversal of 8408191313672 is 2763131918048.

It can be written as a sum of positive squares in 2 ways, for example, as 8004338689636 + 403852624036 = 2829194^2 + 635494^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 599208443 + ... + 599222474.

Almost surely, 2^{8408191313672} is an apocalyptic number.

It is an amenable number.

8408191313672 is a deficient number, since it is larger than the sum of its proper divisors (7375143876388).

8408191313672 is a wasteful number, since it uses less digits than its factorization.

8408191313672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198431800 (or 1198431796 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 8408191313672 in words is "eight trillion, four hundred eight billion, one hundred ninety-one million, three hundred thirteen thousand, six hundred seventy-two".