6942139943739 has 192 divisors, whose sum is σ = 12892690836480. Its totient is φ = 3208747530240.

The previous prime is 6942139943707. The next prime is 6942139943759. The reversal of 6942139943739 is 9373499312496.

It is not a de Polignac number, because 6942139943739 - 2⁵ = 6942139943707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6942139943759) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1790593869 + ... + 1790597745.

It is an arithmetic number, because the mean of its divisors is an integer number (67149431440).

Almost surely, 2^{6942139943739} is an apocalyptic number.

6942139943739 is a deficient number, since it is larger than the sum of its proper divisors (5950550892741).

6942139943739 is a wasteful number, since it uses less digits than its factorization.

6942139943739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4678 (or 4649 counting only the distinct ones).

The product of its digits is 238085568, while the sum is 69.

The spelling of 6942139943739 in words is "six trillion, nine hundred forty-two billion, one hundred thirty-nine million, nine hundred forty-three thousand, seven hundred thirty-nine".