8388660672 has 140 divisors (see below), whose sum is σ = 28419115120. Its totient is φ = 2396749824.

The previous prime is 8388660661. The next prime is 8388660677. The reversal of 8388660672 is 2760668838.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8388660677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 79297 + ... + 151872.

Almost surely, 2^8388660672 is an apocalyptic number.

It is an amenable number.

8388660672 is an abundant number, since it is smaller than the sum of its proper divisors (20030454448).

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

8388660672 is a wasteful number, since it uses less digits than its factorization.

8388660672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231200 (or 231181 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The square root of 8388660672 is about 91589.6319023065. The cubic root of 8388660672 is about 2031.8775992157.

The spelling of 8388660672 in words is "eight billion, three hundred eighty-eight million, six hundred sixty thousand, six hundred seventy-two".