6939394756 has 12 divisors (see below), whose sum is σ = 13878789568. Its totient is φ = 2974026312.

The previous prime is 6939394753. The next prime is 6939394769. The reversal of 6939394756 is 6574939396.

6939394756 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 6939394694 and 6939394703.

It is not an unprimeable number, because it can be changed into a prime (6939394751) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 123917736 + ... + 123917791.

Almost surely, 2^6939394756 is an apocalyptic number.

It is an amenable number.

6939394756 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6939394756 is a wasteful number, since it uses less digits than its factorization.

6939394756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247835538 (or 247835536 counting only the distinct ones).

The product of its digits is 33067440, while the sum is 61.

The square root of 6939394756 is about 83303.0296928029. The cubic root of 6939394756 is about 1907.3945227667.

The spelling of 6939394756 in words is "six billion, nine hundred thirty-nine million, three hundred ninety-four thousand, seven hundred fifty-six".