5349642568 has 16 divisors (see below), whose sum is σ = 10042809660. Its totient is φ = 2671560000.

The previous prime is 5349642563. The next prime is 5349642577. The reversal of 5349642568 is 8652469435.

It can be written as a sum of positive squares in 2 ways, for example, as 5346826884 + 2815684 = 73122^2 + 1678^2 .

It is not an unprimeable number, because it can be changed into a prime (5349642563) 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, 400683 + ... + 413818.

Almost surely, 2^5349642568 is an apocalyptic number.

It is an amenable number.

5349642568 is a deficient number, since it is larger than the sum of its proper divisors (4693167092).

5349642568 is a wasteful number, since it uses less digits than its factorization.

5349642568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815328 (or 815324 counting only the distinct ones).

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

The square root of 5349642568 is about 73141.2507959770. The cubic root of 5349642568 is about 1748.9400458014.

The spelling of 5349642568 in words is "five billion, three hundred forty-nine million, six hundred forty-two thousand, five hundred sixty-eight".