18229603392 has 672 divisors, whose sum is σ = 72816866304. Its totient is φ = 4367001600.

The previous prime is 18229603369. The next prime is 18229603417. The reversal of 18229603392 is 29330692281.

It is a happy number.

18229603392 is a `hidden beast` number, since 1 + 8 + 2 + 2 + 9 + 603 + 39 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15566967 + ... + 15568137.

It is an arithmetic number, because the mean of its divisors is an integer number (108358432).

Almost surely, 2^18229603392 is an apocalyptic number.

18229603392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18229603392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36408433152).

18229603392 is an abundant number, since it is smaller than the sum of its proper divisors (54587262912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18229603392 is a wasteful number, since it uses less digits than its factorization.

18229603392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229 (or 1207 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 18229603392 in words is "eighteen billion, two hundred twenty-nine million, six hundred three thousand, three hundred ninety-two".