8653372638 has 8 divisors (see below), whose sum is σ = 17306745288. Its totient is φ = 2884457544.

The previous prime is 8653372631. The next prime is 8653372667. The reversal of 8653372638 is 8362733568.

It is a sphenic number, since it is the product of 3 distinct primes.

8653372638 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8653372631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721114381 + ... + 721114392.

It is an arithmetic number, because the mean of its divisors is an integer number (2163343161).

Almost surely, 2^8653372638 is an apocalyptic number.

8653372638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8653372638 is a wasteful number, since it uses less digits than its factorization.

8653372638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442228778.

The product of its digits is 4354560, while the sum is 51.

The square root of 8653372638 is about 93023.5058358907. The cubic root of 8653372638 is about 2053.0292425852.

It can be divided in two parts, 865 and 3372638, that added together give a triangular number (3373503 = T₂₅₉₇).

The spelling of 8653372638 in words is "eight billion, six hundred fifty-three million, three hundred seventy-two thousand, six hundred thirty-eight".