22728784130 has 16 divisors (see below), whose sum is σ = 44058874104. Its totient is φ = 8392166400.

The previous prime is 22728784109. The next prime is 22728784157. The reversal of 22728784130 is 3148782722.

It can be written as a sum of positive squares in 4 ways, for example, as 17116227241 + 5612556889 = 130829^2 + 74917^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87418271 + ... + 87418530.

Almost surely, 2^22728784130 is an apocalyptic number.

22728784130 is a deficient number, since it is larger than the sum of its proper divisors (21330089974).

22728784130 is a wasteful number, since it uses less digits than its factorization.

22728784130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174836821.

The product of its (nonzero) digits is 301056, while the sum is 44.

The spelling of 22728784130 in words is "twenty-two billion, seven hundred twenty-eight million, seven hundred eighty-four thousand, one hundred thirty".