18232270000 has 100 divisors (see below), whose sum is σ = 50448363856. Its totient is φ = 6251040000.

The previous prime is 18232269989. The next prime is 18232270013. The reversal of 18232270000 is 7223281.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 60231 + ... + 200230.

Almost surely, 2^18232270000 is an apocalyptic number.

18232270000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18232270000 is an abundant number, since it is smaller than the sum of its proper divisors (32216093856).

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

18232270000 is an equidigital number, since it uses as much as digits as its factorization.

18232270000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260496 (or 260475 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 18232270000 its reverse (7223281), we get a palindrome (18239493281).

The spelling of 18232270000 in words is "eighteen billion, two hundred thirty-two million, two hundred seventy thousand".