18229903742 has 32 divisors (see below), whose sum is σ = 28950929280. Its totient is φ = 8585269920.

The previous prime is 18229903717. The next prime is 18229903763. The reversal of 18229903742 is 24730992281.

It is a happy number.

It is a congruent number.

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, 11135348 + ... + 11136984.

It is an arithmetic number, because the mean of its divisors is an integer number (904716540).

Almost surely, 2^18229903742 is an apocalyptic number.

18229903742 is a deficient number, since it is larger than the sum of its proper divisors (10721025538).

18229903742 is a wasteful number, since it uses less digits than its factorization.

18229903742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3176.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 18229903742 in words is "eighteen billion, two hundred twenty-nine million, nine hundred three thousand, seven hundred forty-two".