18009377230 has 32 divisors (see below), whose sum is σ = 34922147904. Its totient is φ = 6647394816.

The previous prime is 18009377207. The next prime is 18009377231. The reversal of 18009377230 is 3277390081.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18009377231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396679 + ... + 439741.

It is an arithmetic number, because the mean of its divisors is an integer number (1091317122).

Almost surely, 2^18009377230 is an apocalyptic number.

18009377230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18009377230 is a deficient number, since it is larger than the sum of its proper divisors (16912770674).

18009377230 is a wasteful number, since it uses less digits than its factorization.

18009377230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46300.

The product of its (nonzero) digits is 63504, while the sum is 40.

The spelling of 18009377230 in words is "eighteen billion, nine million, three hundred seventy-seven thousand, two hundred thirty".