6994489139 has 8 divisors (see below), whose sum is σ = 7836577968. Its totient is φ = 6186771360.

The previous prime is 6994489121. The next prime is 6994489147. The reversal of 6994489139 is 9319844996.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-6994489139 is a prime.

It is a super-2 number, since 2×6994489139² = 97845756631177922642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6994489109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8592332 + ... + 8593145.

It is an arithmetic number, because the mean of its divisors is an integer number (979572246).

Almost surely, 2^6994489139 is an apocalyptic number.

6994489139 is a deficient number, since it is larger than the sum of its proper divisors (842088829).

6994489139 is a wasteful number, since it uses less digits than its factorization.

6994489139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17185525.

The product of its digits is 15116544, while the sum is 62.

The square root of 6994489139 is about 83633.0624753153. The cubic root of 6994489139 is about 1912.4290558444.

The spelling of 6994489139 in words is "six billion, nine hundred ninety-four million, four hundred eighty-nine thousand, one hundred thirty-nine".