6939394694 has 4 divisors (see below), whose sum is σ = 10409092044. Its totient is φ = 3469697346.

The previous prime is 6939394687. The next prime is 6939394723. The reversal of 6939394694 is 4964939396.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1734848672 + ... + 1734848675.

It is an arithmetic number, because the mean of its divisors is an integer number (2602273011).

Almost surely, 2^6939394694 is an apocalyptic number.

6939394694 is a deficient number, since it is larger than the sum of its proper divisors (3469697350).

6939394694 is a wasteful number, since it uses less digits than its factorization.

6939394694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469697349.

The product of its digits is 34012224, while the sum is 62.

The square root of 6939394694 is about 83303.0293206676. The cubic root of 6939394694 is about 1907.3945170862.

The spelling of 6939394694 in words is "six billion, nine hundred thirty-nine million, three hundred ninety-four thousand, six hundred ninety-four".