18783260143 has 2 divisors, whose sum is σ = 18783260144. Its totient is φ = 18783260142.

The previous prime is 18783260099. The next prime is 18783260219. The reversal of 18783260143 is 34106238781.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18783260143 - 2²¹ = 18781162991 is a prime.

It is a super-2 number, since 2×18783260143² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18783260143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18783200143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9391630071 + 9391630072.

It is an arithmetic number, because the mean of its divisors is an integer number (9391630072).

Almost surely, 2^18783260143 is an apocalyptic number.

18783260143 is a deficient number, since it is larger than the sum of its proper divisors (1).

18783260143 is an equidigital number, since it uses as much as digits as its factorization.

18783260143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 18783260143 in words is "eighteen billion, seven hundred eighty-three million, two hundred sixty thousand, one hundred forty-three".