6669873667 has 2 divisors, whose sum is σ = 6669873668. Its totient is φ = 6669873666.

The previous prime is 6669873643. The next prime is 6669873673. The reversal of 6669873667 is 7663789666.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6669873667 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6669873599 and 6669873608.

It is not a weakly prime, because it can be changed into another prime (6669873607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3334936833 + 3334936834.

It is an arithmetic number, because the mean of its divisors is an integer number (3334936834).

Almost surely, 2^6669873667 is an apocalyptic number.

6669873667 is a deficient number, since it is larger than the sum of its proper divisors (1).

6669873667 is an equidigital number, since it uses as much as digits as its factorization.

6669873667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82301184, while the sum is 64.

The square root of 6669873667 is about 81669.2945175848. The cubic root of 6669873667 is about 1882.3737996687.

The spelling of 6669873667 in words is "six billion, six hundred sixty-nine million, eight hundred seventy-three thousand, six hundred sixty-seven".