18343553150 has 48 divisors (see below), whose sum is σ = 37246980624. Its totient is φ = 6680206080.

The previous prime is 18343553143. The next prime is 18343553153. The reversal of 18343553150 is 5135534381.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18343553153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145844 + ... + 240743.

It is an arithmetic number, because the mean of its divisors is an integer number (775978763).

Almost surely, 2^18343553150 is an apocalyptic number.

18343553150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18343553150 is an abundant number, since it is smaller than the sum of its proper divisors (18903427474).

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

18343553150 is a wasteful number, since it uses less digits than its factorization.

18343553150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386685 (or 386680 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 18343553150 in words is "eighteen billion, three hundred forty-three million, five hundred fifty-three thousand, one hundred fifty".