6669873387 has 6 divisors (see below), whose sum is σ = 9634261572. Its totient is φ = 4446582252.

The previous prime is 6669873377. The next prime is 6669873401. The reversal of 6669873387 is 7833789666.

It is not a de Polignac number, because 6669873387 - 2⁶ = 6669873323 is a prime.

It is a super-2 number, since 2×6669873387² = 88974421997221703538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6669873307) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 370548513 + ... + 370548530.

It is an arithmetic number, because the mean of its divisors is an integer number (1605710262).

Almost surely, 2^6669873387 is an apocalyptic number.

6669873387 is a deficient number, since it is larger than the sum of its proper divisors (2964388185).

6669873387 is a wasteful number, since it uses less digits than its factorization.

6669873387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741097049 (or 741097046 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 63.

The square root of 6669873387 is about 81669.2928033542. The cubic root of 6669873387 is about 1882.3737733282.

The spelling of 6669873387 in words is "six billion, six hundred sixty-nine million, eight hundred seventy-three thousand, three hundred eighty-seven".