6131218688 has 108 divisors (see below), whose sum is σ = 14696785152. Its totient is φ = 2542740480.

The previous prime is 6131218669. The next prime is 6131218697. The reversal of 6131218688 is 8868121316.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 380981 + ... + 396747.

It is an arithmetic number, because the mean of its divisors is an integer number (136081344).

Almost surely, 2^6131218688 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 6131218688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7348392576).

6131218688 is an abundant number, since it is smaller than the sum of its proper divisors (8565566464).

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

6131218688 is a wasteful number, since it uses less digits than its factorization.

6131218688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15828 (or 15807 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The square root of 6131218688 is about 78302.0988735296. The cubic root of 6131218688 is about 1830.2718586431.

The spelling of 6131218688 in words is "six billion, one hundred thirty-one million, two hundred eighteen thousand, six hundred eighty-eight".