5639671888 has 20 divisors (see below), whose sum is σ = 11032953568. Its totient is φ = 2792458080.

The previous prime is 5639671781. The next prime is 5639671927. The reversal of 5639671888 is 8881769365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1709418 + ... + 1712713.

Almost surely, 2^5639671888 is an apocalyptic number.

It is an amenable number.

5639671888 is a deficient number, since it is larger than the sum of its proper divisors (5393281680).

5639671888 is a wasteful number, since it uses less digits than its factorization.

5639671888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422242 (or 3422236 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 61.

The square root of 5639671888 is about 75097.7488876997. The cubic root of 5639671888 is about 1779.9915717313.

The spelling of 5639671888 in words is "five billion, six hundred thirty-nine million, six hundred seventy-one thousand, eight hundred eighty-eight".