18059183426 has 4 divisors (see below), whose sum is σ = 27088775142. Its totient is φ = 9029591712.

The previous prime is 18059183413. The next prime is 18059183477. The reversal of 18059183426 is 62438195081.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62438195081 = 2543 ⋅24552967.

It can be written as a sum of positive squares in only one way, i.e., 16435496401 + 1623687025 = 128201^2 + 40295^2 .

It is a super-2 number, since 2×18059183426² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4514795855 + ... + 4514795858.

Almost surely, 2^18059183426 is an apocalyptic number.

18059183426 is a deficient number, since it is larger than the sum of its proper divisors (9029591716).

18059183426 is an equidigital number, since it uses as much as digits as its factorization.

18059183426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9029591715.

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 18059183426 in words is "eighteen billion, fifty-nine million, one hundred eighty-three thousand, four hundred twenty-six".