6139639909942 has 24 divisors (see below), whose sum is σ = 11568908263248. Its totient is φ = 2392067496720.

The previous prime is 6139639909933. The next prime is 6139639909969. The reversal of 6139639909942 is 2499099369316.

It is a congruent 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, 1812170653 + ... + 1812174040.

It is an arithmetic number, because the mean of its divisors is an integer number (482037844302).

Almost surely, 2^{6139639909942} is an apocalyptic number.

6139639909942 is a deficient number, since it is larger than the sum of its proper divisors (5429268353306).

6139639909942 is a wasteful number, since it uses less digits than its factorization.

6139639909942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3624344724 (or 3624344713 counting only the distinct ones).

The product of its (nonzero) digits is 153055008, while the sum is 70.

The spelling of 6139639909942 in words is "six trillion, one hundred thirty-nine billion, six hundred thirty-nine million, nine hundred nine thousand, nine hundred forty-two".