6869490939 has 6 divisors (see below), whose sum is σ = 9922598036. Its totient is φ = 4579660620.

The previous prime is 6869490931. The next prime is 6869490941. The reversal of 6869490939 is 9390949686.

It is not a de Polignac number, because 6869490939 - 2³ = 6869490931 is a prime.

It is a super-2 number, since 2×6869490939² = 94379811522006203442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6869490931) 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 5 ways as a sum of consecutive naturals, for example, 381638377 + ... + 381638394.

Almost surely, 2^6869490939 is an apocalyptic number.

6869490939 is a deficient number, since it is larger than the sum of its proper divisors (3053107097).

6869490939 is a wasteful number, since it uses less digits than its factorization.

6869490939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763276777 (or 763276774 counting only the distinct ones).

The product of its (nonzero) digits is 22674816, while the sum is 63.

The square root of 6869490939 is about 82882.3922133043. The cubic root of 6869490939 is about 1900.9681989713.

The spelling of 6869490939 in words is "six billion, eight hundred sixty-nine million, four hundred ninety thousand, nine hundred thirty-nine".