6139308408 has 64 divisors (see below), whose sum is σ = 15520377600. Its totient is φ = 2023549440.

The previous prime is 6139308407. The next prime is 6139308433. The reversal of 6139308408 is 8048039316.

It is a happy number.

It is a super-2 number, since 2×6139308408² = 75382215457078988928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6139308408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6139308407) 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, 2176423 + ... + 2179241.

It is an arithmetic number, because the mean of its divisors is an integer number (242505900).

Almost surely, 2^6139308408 is an apocalyptic number.

It is an amenable number.

6139308408 is an abundant number, since it is smaller than the sum of its proper divisors (9381069192).

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

6139308408 is a wasteful number, since it uses less digits than its factorization.

6139308408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3812 (or 3808 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 6139308408 is about 78353.7389535432. The cubic root of 6139308408 is about 1831.0764773430.

The spelling of 6139308408 in words is "six billion, one hundred thirty-nine million, three hundred eight thousand, four hundred eight".