8653381632 has 504 divisors, whose sum is σ = 30955219776. Its totient is φ = 2364899328.

The previous prime is 8653381621. The next prime is 8653381643. The reversal of 8653381632 is 2361833568.

8653381632 is a `hidden beast` number, since 8 + 6 + 5 + 3 + 3 + 8 + 1 + 632 = 666.

It is an interprime number because it is at equal distance from previous prime (8653381621) and next prime (8653381643).

It is a tau number, because it is divible by the number of its divisors (504).

Its product of digits (622080) is a multiple of the sum of its prime factors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 376233973 + ... + 376233995.

Almost surely, 2^8653381632 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 8653381632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15477609888).

8653381632 is an abundant number, since it is smaller than the sum of its proper divisors (22301838144).

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

8653381632 is an frugal number, since it uses more digits than its factorization.

8653381632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 35 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 8653381632 is about 93023.5541784983. The cubic root of 8653381632 is about 2053.0299538662.

The spelling of 8653381632 in words is "eight billion, six hundred fifty-three million, three hundred eighty-one thousand, six hundred thirty-two".