8638926372 has 60 divisors (see below), whose sum is σ = 22597865136. Its totient is φ = 2877856560.

The previous prime is 8638926367. The next prime is 8638926391. The reversal of 8638926372 is 2736298368.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 579403 + ... + 594125.

Almost surely, 2^8638926372 is an apocalyptic number.

It is an amenable number.

8638926372 is an abundant number, since it is smaller than the sum of its proper divisors (13958938764).

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

8638926372 is a wasteful number, since it uses less digits than its factorization.

8638926372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16550 (or 16539 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 8638926372 is about 92945.8249304400. The cubic root of 8638926372 is about 2051.8861381368.

The spelling of 8638926372 in words is "eight billion, six hundred thirty-eight million, nine hundred twenty-six thousand, three hundred seventy-two".