5639278724 has 12 divisors (see below), whose sum is σ = 9869281548. Its totient is φ = 2819484000.

The previous prime is 5639278693. The next prime is 5639278769. The reversal of 5639278724 is 4278729365.

It can be written as a sum of positive squares in 2 ways, for example, as 3308320324 + 2330958400 = 57518^2 + 48280^2 .

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, 91214 + ... + 139994.

It is an arithmetic number, because the mean of its divisors is an integer number (822440129).

Almost surely, 2^5639278724 is an apocalyptic number.

It is an amenable number.

5639278724 is a deficient number, since it is larger than the sum of its proper divisors (4230002824).

5639278724 is a wasteful number, since it uses less digits than its factorization.

5639278724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77686 (or 77684 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 53.

The square root of 5639278724 is about 75095.1311604155. The cubic root of 5639278724 is about 1779.9502073350.

The spelling of 5639278724 in words is "five billion, six hundred thirty-nine million, two hundred seventy-eight thousand, seven hundred twenty-four".