5866638839 has 4 divisors (see below), whose sum is σ = 6068936760. Its totient is φ = 5664340920.

The previous prime is 5866638809. The next prime is 5866638853. The reversal of 5866638839 is 9388366685.

5866638839 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9388366685 = 5 ⋅1877673337.

It is a cyclic number.

It is not a de Polignac number, because 5866638839 - 2¹² = 5866634743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5866638809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101148917 + ... + 101148974.

It is an arithmetic number, because the mean of its divisors is an integer number (1517234190).

Almost surely, 2^5866638839 is an apocalyptic number.

5866638839 is a deficient number, since it is larger than the sum of its proper divisors (202297921).

5866638839 is a wasteful number, since it uses less digits than its factorization.

5866638839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202297920.

The product of its digits is 44789760, while the sum is 62.

The square root of 5866638839 is about 76593.9869637297. The cubic root of 5866638839 is about 1803.5566343530.

The spelling of 5866638839 in words is "five billion, eight hundred sixty-six million, six hundred thirty-eight thousand, eight hundred thirty-nine".