8638448368 has 40 divisors (see below), whose sum is σ = 18274830336. Its totient is φ = 3923064000.

The previous prime is 8638448359. The next prime is 8638448417.

8638448368 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181255 + ... + 223897.

Almost surely, 2^8638448368 is an apocalyptic number.

8638448368 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

8638448368 is an abundant number, since it is smaller than the sum of its proper divisors (9636381968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8638448368 is a wasteful number, since it uses less digits than its factorization.

8638448368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43813 (or 43807 counting only the distinct ones).

The product of its digits is 21233664, while the sum is 58.

The square root of 8638448368 is about 92943.2534829721. The cubic root of 8638448368 is about 2051.8482928526.

The spelling of 8638448368 in words is "eight billion, six hundred thirty-eight million, four hundred forty-eight thousand, three hundred sixty-eight".