8634120372 has 96 divisors (see below), whose sum is σ = 24323174400. Its totient is φ = 2638591200.

The previous prime is 8634120331. The next prime is 8634120379. The reversal of 8634120372 is 2730214368.

It is a happy number.

8634120372 is a `hidden beast` number, since 8 + 634 + 12 + 0 + 3 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8634120379) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4254 + ... + 131477.

It is an arithmetic number, because the mean of its divisors is an integer number (253366400).

Almost surely, 2^8634120372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8634120372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12161587200).

8634120372 is an abundant number, since it is smaller than the sum of its proper divisors (15689054028).

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

8634120372 is a wasteful number, since it uses less digits than its factorization.

8634120372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135794 (or 135786 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 8634120372 is about 92919.9675634898. The cubic root of 8634120372 is about 2051.5055663848.

The spelling of 8634120372 in words is "eight billion, six hundred thirty-four million, one hundred twenty thousand, three hundred seventy-two".