6939194343 has 4 divisors (see below), whose sum is σ = 9252259128. Its totient is φ = 4626129560.

The previous prime is 6939194321. The next prime is 6939194377. The reversal of 6939194343 is 3434919396.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6939194343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6939194303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1156532388 + ... + 1156532393.

It is an arithmetic number, because the mean of its divisors is an integer number (2313064782).

Almost surely, 2^6939194343 is an apocalyptic number.

6939194343 is a deficient number, since it is larger than the sum of its proper divisors (2313064785).

6939194343 is a wasteful number, since it uses less digits than its factorization.

6939194343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313064784.

The product of its digits is 1889568, while the sum is 51.

The square root of 6939194343 is about 83301.8267686850. The cubic root of 6939194343 is about 1907.3761604382.

The spelling of 6939194343 in words is "six billion, nine hundred thirty-nine million, one hundred ninety-four thousand, three hundred forty-three".