6399942119 has 16 divisors (see below), whose sum is σ = 6716252928. Its totient is φ = 6086912832.

The previous prime is 6399942113. The next prime is 6399942127. The reversal of 6399942119 is 9112499936.

It is a happy number.

6399942119 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6399942119 - 2⁴ = 6399942103 is a prime.

It is a super-2 number, since 2×6399942119² = 81918518253100420322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6399942113) 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, 3861539 + ... + 3863195.

It is an arithmetic number, because the mean of its divisors is an integer number (419765808).

Almost surely, 2^6399942119 is an apocalyptic number.

6399942119 is a deficient number, since it is larger than the sum of its proper divisors (316310809).

6399942119 is a wasteful number, since it uses less digits than its factorization.

6399942119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2534.

The product of its digits is 944784, while the sum is 53.

The square root of 6399942119 is about 79999.6382429321. The cubic root of 6399942119 is about 1856.6299363490.

The spelling of 6399942119 in words is "six billion, three hundred ninety-nine million, nine hundred forty-two thousand, one hundred nineteen".