5637994918 has 16 divisors (see below), whose sum is σ = 8550510336. Its totient is φ = 2787996160.

The previous prime is 5637994891. The next prime is 5637994919. The reversal of 5637994918 is 8194997365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5637994919) 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, 23430 + ... + 108742.

It is an arithmetic number, because the mean of its divisors is an integer number (534406896).

Almost surely, 2^5637994918 is an apocalyptic number.

5637994918 is a deficient number, since it is larger than the sum of its proper divisors (2912515418).

5637994918 is a wasteful number, since it uses less digits than its factorization.

5637994918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85679.

The product of its digits is 14696640, while the sum is 61.

The square root of 5637994918 is about 75086.5828094474. The cubic root of 5637994918 is about 1779.8151259830.

The spelling of 5637994918 in words is "five billion, six hundred thirty-seven million, nine hundred ninety-four thousand, nine hundred eighteen".