18102544143 has 8 divisors (see below), whose sum is σ = 24144654000. Its totient is φ = 12064398528.

The previous prime is 18102544093. The next prime is 18102544217. The reversal of 18102544143 is 34144520181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18102544143 - 2¹⁸ = 18102281999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18102540143) 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, 980388 + ... + 998681.

It is an arithmetic number, because the mean of its divisors is an integer number (3018081750).

Almost surely, 2^18102544143 is an apocalyptic number.

18102544143 is a deficient number, since it is larger than the sum of its proper divisors (6042109857).

18102544143 is a wasteful number, since it uses less digits than its factorization.

18102544143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982121.

The product of its (nonzero) digits is 15360, while the sum is 33.

The spelling of 18102544143 in words is "eighteen billion, one hundred two million, five hundred forty-four thousand, one hundred forty-three".