1818229029418 has 32 divisors (see below), whose sum is σ = 2823199097040. Its totient is φ = 877638720000.

The previous prime is 1818229029359. The next prime is 1818229029427. The reversal of 1818229029418 is 8149209228181.

It can be written as a sum of positive squares in 8 ways, for example, as 291192982129 + 1527036047289 = 539623^2 + 1235733^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14089708 + ... + 14218168.

Almost surely, 2^{1818229029418} is an apocalyptic number.

1818229029418 is a deficient number, since it is larger than the sum of its proper divisors (1004970067622).

1818229029418 is a wasteful number, since it uses less digits than its factorization.

1818229029418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130314.

The product of its (nonzero) digits is 1327104, while the sum is 55.

The spelling of 1818229029418 in words is "one trillion, eight hundred eighteen billion, two hundred twenty-nine million, twenty-nine thousand, four hundred eighteen".