5666672839 has 4 divisors (see below), whose sum is σ = 5666843160. Its totient is φ = 5666502520.

The previous prime is 5666672831. The next prime is 5666672867. The reversal of 5666672839 is 9382766665.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5666672839 - 2³ = 5666672831 is a prime.

It is a super-2 number, since 2×5666672839² = 64222362128520639842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5666672831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17149 + ... + 107830.

It is an arithmetic number, because the mean of its divisors is an integer number (1416710790).

Almost surely, 2^5666672839 is an apocalyptic number.

5666672839 is a deficient number, since it is larger than the sum of its proper divisors (170321).

5666672839 is a wasteful number, since it uses less digits than its factorization.

5666672839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170320.

The product of its digits is 19595520, while the sum is 58.

The square root of 5666672839 is about 75277.3062682240. The cubic root of 5666672839 is about 1782.8277277189.

The spelling of 5666672839 in words is "five billion, six hundred sixty-six million, six hundred seventy-two thousand, eight hundred thirty-nine".