3129259868 has 12 divisors (see below), whose sum is σ = 6258519792. Its totient is φ = 1341111360.

The previous prime is 3129259843. The next prime is 3129259873. The reversal of 3129259868 is 8689529213.

3129259868 is an admirable number.

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 in 3 ways as a sum of consecutive naturals, for example, 55879613 + ... + 55879668.

It is an arithmetic number, because the mean of its divisors is an integer number (521543316).

Almost surely, 2^3129259868 is an apocalyptic number.

It is an amenable number.

3129259868 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.

3129259868 is a wasteful number, since it uses less digits than its factorization.

3129259868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111759292 (or 111759290 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 53.

The square root of 3129259868 is about 55939.7878794691. The cubic root of 3129259868 is about 1462.6728837239.

The spelling of 3129259868 in words is "three billion, one hundred twenty-nine million, two hundred fifty-nine thousand, eight hundred sixty-eight".