8613388128 has 96 divisors (see below), whose sum is σ = 23680048896. Its totient is φ = 2736188928.

The previous prime is 8613388127. The next prime is 8613388129. The reversal of 8613388128 is 8218833168.

It is an interprime number because it is at equal distance from previous prime (8613388127) and next prime (8613388129).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8613388127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 604575 + ... + 618657.

It is an arithmetic number, because the mean of its divisors is an integer number (246667176).

Almost surely, 2^8613388128 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 8613388128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11840024448).

8613388128 is an abundant number, since it is smaller than the sum of its proper divisors (15066660768).

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

8613388128 is a wasteful number, since it uses less digits than its factorization.

8613388128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14396 (or 14388 counting only the distinct ones).

The product of its digits is 442368, while the sum is 48.

The square root of 8613388128 is about 92808.3408320610. The cubic root of 8613388128 is about 2049.8622257597.

The spelling of 8613388128 in words is "eight billion, six hundred thirteen million, three hundred eighty-eight thousand, one hundred twenty-eight".