18602744143 has 4 divisors (see below), whose sum is σ = 19581835960. Its totient is φ = 17623652328.

The previous prime is 18602744129. The next prime is 18602744161. The reversal of 18602744143 is 34144720681.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34144720681 = 88117 ⋅387493.

It is a cyclic number.

It is not a de Polignac number, because 18602744143 - 2⁹ = 18602743631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18602744096 and 18602744105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18602744113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489545880 + ... + 489545917.

It is an arithmetic number, because the mean of its divisors is an integer number (4895458990).

Almost surely, 2^18602744143 is an apocalyptic number.

18602744143 is a deficient number, since it is larger than the sum of its proper divisors (979091817).

18602744143 is an equidigital number, since it uses as much as digits as its factorization.

18602744143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979091816.

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 18602744143 in words is "eighteen billion, six hundred two million, seven hundred forty-four thousand, one hundred forty-three".