8638468808 has 16 divisors (see below), whose sum is σ = 17149901580. Its totient is φ = 4065161728.

The previous prime is 8638468717. The next prime is 8638468837. The reversal of 8638468808 is 8088648368.

It can be written as a sum of positive squares in 2 ways, for example, as 6770327524 + 1868141284 = 82282^2 + 43222^2 .

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, 31758941 + ... + 31759212.

Almost surely, 2^8638468808 is an apocalyptic number.

It is an amenable number.

8638468808 is a deficient number, since it is larger than the sum of its proper divisors (8511432772).

8638468808 is a wasteful number, since it uses less digits than its factorization.

8638468808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63518176 (or 63518172 counting only the distinct ones).

The product of its (nonzero) digits is 14155776, while the sum is 59.

The square root of 8638468808 is about 92943.3634424750. The cubic root of 8638468808 is about 2051.8499111890.

The spelling of 8638468808 in words is "eight billion, six hundred thirty-eight million, four hundred sixty-eight thousand, eight hundred eight".