18029941868 has 48 divisors (see below), whose sum is σ = 34231572480. Its totient is φ = 8284636800.

The previous prime is 18029941823. The next prime is 18029941873. The reversal of 18029941868 is 86814992081.

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, 373688 + ... + 419168.

It is an arithmetic number, because the mean of its divisors is an integer number (713157760).

Almost surely, 2^18029941868 is an apocalyptic number.

It is an amenable number.

18029941868 is a deficient number, since it is larger than the sum of its proper divisors (16201630612).

18029941868 is a wasteful number, since it uses less digits than its factorization.

18029941868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45678 (or 45676 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 56.

The spelling of 18029941868 in words is "eighteen billion, twenty-nine million, nine hundred forty-one thousand, eight hundred sixty-eight".