6939818944 has 14 divisors (see below), whose sum is σ = 13771203344. Its totient is φ = 3469909440.

The previous prime is 6939818939. The next prime is 6939818953. The reversal of 6939818944 is 4498189396.

It is a super-2 number, since 2×6939818944² = 96322173951002550272, which contains 22 as substring.

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, 54217272 + ... + 54217399.

Almost surely, 2^6939818944 is an apocalyptic number.

6939818944 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6939818944 is a deficient number, since it is larger than the sum of its proper divisors (6831384400).

6939818944 is a wasteful number, since it uses less digits than its factorization.

6939818944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108434683 (or 108434673 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 61.

The square root of 6939818944 is about 83305.5757077520. The cubic root of 6939818944 is about 1907.4333867412.

The spelling of 6939818944 in words is "six billion, nine hundred thirty-nine million, eight hundred eighteen thousand, nine hundred forty-four".