5639661934 has 8 divisors (see below), whose sum is σ = 8490941640. Its totient is φ = 2809348056.

The previous prime is 5639661931. The next prime is 5639661959. The reversal of 5639661934 is 4391669365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5639661931) 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, 5240784 + ... + 5241859.

It is an arithmetic number, because the mean of its divisors is an integer number (1061367705).

Almost surely, 2^5639661934 is an apocalyptic number.

5639661934 is a deficient number, since it is larger than the sum of its proper divisors (2851279706).

5639661934 is a wasteful number, since it uses less digits than its factorization.

5639661934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10482914.

The product of its digits is 3149280, while the sum is 52.

The square root of 5639661934 is about 75097.6826140461. The cubic root of 5639661934 is about 1779.9905245045.

The spelling of 5639661934 in words is "five billion, six hundred thirty-nine million, six hundred sixty-one thousand, nine hundred thirty-four".