18786307400143 has 2 divisors, whose sum is σ = 18786307400144. Its totient is φ = 18786307400142.

The previous prime is 18786307400131. The next prime is 18786307400173. The reversal of 18786307400143 is 34100470368781.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18786307400143 - 2⁵ = 18786307400111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18786307400173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9393153700071 + 9393153700072.

It is an arithmetic number, because the mean of its divisors is an integer number (9393153700072).

Almost surely, 2^{18786307400143} is an apocalyptic number.

18786307400143 is a deficient number, since it is larger than the sum of its proper divisors (1).

18786307400143 is an equidigital number, since it uses as much as digits as its factorization.

18786307400143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 18786307400143 in words is "eighteen trillion, seven hundred eighty-six billion, three hundred seven million, four hundred thousand, one hundred forty-three".