408709999408 has 40 divisors (see below), whose sum is σ = 795728454048. Its totient is φ = 203362371072.

The previous prime is 408709999403. The next prime is 408709999409. The reversal of 408709999408 is 804999907804.

It is not an unprimeable number, because it can be changed into a prime (408709999403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3959266 + ... + 4061182.

Almost surely, 2^408709999408 is an apocalyptic number.

It is an amenable number.

408709999408 is a deficient number, since it is larger than the sum of its proper divisors (387018454640).

408709999408 is a wasteful number, since it uses less digits than its factorization.

408709999408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103141 (or 103135 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 67.

The spelling of 408709999408 in words is "four hundred eight billion, seven hundred nine million, nine hundred ninety-nine thousand, four hundred eight".