18081347000 has 32 divisors (see below), whose sum is σ = 42310354320. Its totient is φ = 7232538400.

The previous prime is 18081346993. The next prime is 18081347003. The reversal of 18081347000 is 74318081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18081347003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9039674 + ... + 9041673.

Almost surely, 2^18081347000 is an apocalyptic number.

18081347000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18081347000 is an abundant number, since it is smaller than the sum of its proper divisors (24229007320).

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

18081347000 is a wasteful number, since it uses less digits than its factorization.

18081347000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18081368 (or 18081354 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 18081347000 in words is "eighteen billion, eighty-one million, three hundred forty-seven thousand".