5239544668 has 24 divisors (see below), whose sum is σ = 9424583168. Its totient is φ = 2547354096.

The previous prime is 5239544641. The next prime is 5239544669. The reversal of 5239544668 is 8664459325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5239544669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29946 + ... + 106657.

Almost surely, 2^5239544668 is an apocalyptic number.

It is an amenable number.

5239544668 is a deficient number, since it is larger than the sum of its proper divisors (4185038500).

5239544668 is a wasteful number, since it uses less digits than its factorization.

5239544668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136873 (or 136871 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 52.

The square root of 5239544668 is about 72384.6991290286. The cubic root of 5239544668 is about 1736.8588092704.

The spelling of 5239544668 in words is "five billion, two hundred thirty-nine million, five hundred forty-four thousand, six hundred sixty-eight".