18374460282887 has 4 divisors (see below), whose sum is σ = 18374482494696. Its totient is φ = 18374438071080.

The previous prime is 18374460282881. The next prime is 18374460282889. The reversal of 18374460282887 is 78828206447381.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18374460282887 - 2²⁰ = 18374459234311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18374460282881) 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, 9815033 + ... + 11536194.

It is an arithmetic number, because the mean of its divisors is an integer number (4593620623674).

Almost surely, 2^{18374460282887} is an apocalyptic number.

18374460282887 is a deficient number, since it is larger than the sum of its proper divisors (22211809).

18374460282887 is an equidigital number, since it uses as much as digits as its factorization.

18374460282887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22211808.

The product of its (nonzero) digits is 231211008, while the sum is 68.

The spelling of 18374460282887 in words is "eighteen trillion, three hundred seventy-four billion, four hundred sixty million, two hundred eighty-two thousand, eight hundred eighty-seven".