6669974139 has 8 divisors (see below), whose sum is σ = 8909559360. Its totient is φ = 4438519176.

The previous prime is 6669974137. The next prime is 6669974159. The reversal of 6669974139 is 9314799666.

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

It is not a de Polignac number, because 6669974139 - 2¹ = 6669974137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6669974137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2030649 + ... + 2033930.

It is an arithmetic number, because the mean of its divisors is an integer number (1113694920).

Almost surely, 2^6669974139 is an apocalyptic number.

6669974139 is a deficient number, since it is larger than the sum of its proper divisors (2239585221).

6669974139 is a wasteful number, since it uses less digits than its factorization.

6669974139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4065129.

The product of its digits is 13226976, while the sum is 60.

The square root of 6669974139 is about 81669.9096301692. The cubic root of 6669974139 is about 1882.3832513675.

The spelling of 6669974139 in words is "six billion, six hundred sixty-nine million, nine hundred seventy-four thousand, one hundred thirty-nine".