5638218522 has 16 divisors (see below), whose sum is σ = 11321366112. Its totient is φ = 1871918000.

The previous prime is 5638218499. The next prime is 5638218529. The reversal of 5638218522 is 2258128365.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (5638218529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1870413 + ... + 1873424.

It is an arithmetic number, because the mean of its divisors is an integer number (707585382).

Almost surely, 2^5638218522 is an apocalyptic number.

5638218522 is an abundant number, since it is smaller than the sum of its proper divisors (5683147590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5638218522 is a wasteful number, since it uses less digits than its factorization.

5638218522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3744093.

The product of its digits is 230400, while the sum is 42.

The square root of 5638218522 is about 75088.0717690899. The cubic root of 5638218522 is about 1779.8386549459.

The spelling of 5638218522 in words is "five billion, six hundred thirty-eight million, two hundred eighteen thousand, five hundred twenty-two".