13618423204 has 81 divisors (see below), whose sum is σ = 26165966337. Its totient is φ = 6200864928.

The previous prime is 13618423111. The next prime is 13618423219. The reversal of 13618423204 is 40232481631.

The square root of 13618423204 is 116698.

It is a perfect power (a square), and thus also a powerful number.

13618423204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12185952100 + 1432471104 = 110390^2 + 37848^2 .

It is a super-2 number, since 2×13618423204² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13618423204.

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 26 ways as a sum of consecutive naturals, for example, 164077347 + ... + 164077429.

Almost surely, 2^13618423204 is an apocalyptic number.

13618423204 is the 116698-th square number.

It is an amenable number.

13618423204 is a deficient number, since it is larger than the sum of its proper divisors (12547543133).

13618423204 is an equidigital number, since it uses as much as digits as its factorization.

13618423204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The spelling of 13618423204 in words is "thirteen billion, six hundred eighteen million, four hundred twenty-three thousand, two hundred four".