8399078788 has 12 divisors (see below), whose sum is σ = 15011119872. Its totient is φ = 4110187400.

The previous prime is 8399078783. The next prime is 8399078789. The reversal of 8399078788 is 8878709938.

It is not an unprimeable number, because it can be changed into a prime (8399078783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22337788 + ... + 22338163.

It is an arithmetic number, because the mean of its divisors is an integer number (1250926656).

Almost surely, 2^8399078788 is an apocalyptic number.

It is an amenable number.

8399078788 is a deficient number, since it is larger than the sum of its proper divisors (6612041084).

8399078788 is a wasteful number, since it uses less digits than its factorization.

8399078788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44676002 (or 44676000 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 67.

The square root of 8399078788 is about 91646.4881378441. The cubic root of 8399078788 is about 2032.7184000781.

The spelling of 8399078788 in words is "eight billion, three hundred ninety-nine million, seventy-eight thousand, seven hundred eighty-eight".