5668571939 has 4 divisors (see below), whose sum is σ = 5821776624. Its totient is φ = 5515367256.

The previous prime is 5668571933. The next prime is 5668571941. The reversal of 5668571939 is 9391758665.

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 5668571939 - 2⁸ = 5668571683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5668571933) 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, 76602287 + ... + 76602360.

It is an arithmetic number, because the mean of its divisors is an integer number (1455444156).

Almost surely, 2^5668571939 is an apocalyptic number.

5668571939 is a deficient number, since it is larger than the sum of its proper divisors (153204685).

5668571939 is a wasteful number, since it uses less digits than its factorization.

5668571939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153204684.

The product of its digits is 12247200, while the sum is 59.

The square root of 5668571939 is about 75289.9192388994. The cubic root of 5668571939 is about 1783.0268680890.

The spelling of 5668571939 in words is "five billion, six hundred sixty-eight million, five hundred seventy-one thousand, nine hundred thirty-nine".