5638264678 has 16 divisors (see below), whose sum is σ = 8480505600. Its totient is φ = 2811441096.

The previous prime is 5638264663. The next prime is 5638264679. The reversal of 5638264678 is 8764628365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5638264679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1373473 + ... + 1377571.

It is an arithmetic number, because the mean of its divisors is an integer number (530031600).

Almost surely, 2^5638264678 is an apocalyptic number.

5638264678 is a deficient number, since it is larger than the sum of its proper divisors (2842240922).

5638264678 is a wasteful number, since it uses less digits than its factorization.

5638264678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5811.

The product of its digits is 11612160, while the sum is 55.

The square root of 5638264678 is about 75088.3791142145. The cubic root of 5638264678 is about 1779.8435116815.

The spelling of 5638264678 in words is "five billion, six hundred thirty-eight million, two hundred sixty-four thousand, six hundred seventy-eight".