6415388680 has 16 divisors (see below), whose sum is σ = 14434624620. Its totient is φ = 2566155456.

The previous prime is 6415388647. The next prime is 6415388699. The reversal of 6415388680 is 868835146.

It can be written as a sum of positive squares in 2 ways, for example, as 5509499076 + 905889604 = 74226^2 + 30098^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 80192319 + ... + 80192398.

Almost surely, 2^6415388680 is an apocalyptic number.

It is an amenable number.

6415388680 is an abundant number, since it is smaller than the sum of its proper divisors (8019235940).

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

6415388680 is a wasteful number, since it uses less digits than its factorization.

6415388680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160384728 (or 160384724 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

The square root of 6415388680 is about 80096.1215041028. The cubic root of 6415388680 is about 1858.1224241236.

The spelling of 6415388680 in words is "six billion, four hundred fifteen million, three hundred eighty-eight thousand, six hundred eighty".