8631653604 has 72 divisors (see below), whose sum is σ = 23453998848. Its totient is φ = 2463531840.

The previous prime is 8631653581. The next prime is 8631653623. The reversal of 8631653604 is 4063561368.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 575302 + ... + 590114.

It is an arithmetic number, because the mean of its divisors is an integer number (325749984).

Almost surely, 2^8631653604 is an apocalyptic number.

8631653604 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8631653604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11726999424).

8631653604 is an abundant number, since it is smaller than the sum of its proper divisors (14822345244).

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

8631653604 is a wasteful number, since it uses less digits than its factorization.

8631653604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15825 (or 15816 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 8631653604 is about 92906.6929989438. The cubic root of 8631653604 is about 2051.3101760776.

The spelling of 8631653604 in words is "eight billion, six hundred thirty-one million, six hundred fifty-three thousand, six hundred four".