8408799999 has 16 divisors (see below), whose sum is σ = 13113139200. Its totient is φ = 5310820728.

The previous prime is 8408799953. The next prime is 8408800007. The reversal of 8408799999 is 9999978048.

It is not a de Polignac number, because 8408799999 - 2²¹ = 8406702847 is a prime.

8408799999 is a modest number, since divided by 99999 gives 84087 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8408799499) 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, 8195199 + ... + 8196224.

It is an arithmetic number, because the mean of its divisors is an integer number (819571200).

Almost surely, 2^8408799999 is an apocalyptic number.

8408799999 is a deficient number, since it is larger than the sum of its proper divisors (4704339201).

8408799999 is a wasteful number, since it uses less digits than its factorization.

8408799999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16391451 (or 16391445 counting only the distinct ones).

The product of its (nonzero) digits is 105815808, while the sum is 72.

The square root of 8408799999 is about 91699.5092625909. The cubic root of 8408799999 is about 2033.5023299264.

The spelling of 8408799999 in words is "eight billion, four hundred eight million, seven hundred ninety-nine thousand, nine hundred ninety-nine".