5638577636 has 12 divisors (see below), whose sum is σ = 10386853680. Its totient is φ = 2670905160.

The previous prime is 5638577611. The next prime is 5638577683. The reversal of 5638577636 is 6367758365.

It is a happy 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, 37095830 + ... + 37095981.

It is an arithmetic number, because the mean of its divisors is an integer number (865571140).

Almost surely, 2^5638577636 is an apocalyptic number.

It is an amenable number.

5638577636 is a deficient number, since it is larger than the sum of its proper divisors (4748276044).

5638577636 is a wasteful number, since it uses less digits than its factorization.

5638577636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74191834 (or 74191832 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 56.

The square root of 5638577636 is about 75090.4630162846. The cubic root of 5638577636 is about 1779.8764417875.

The spelling of 5638577636 in words is "five billion, six hundred thirty-eight million, five hundred seventy-seven thousand, six hundred thirty-six".