18286472791 has 2 divisors, whose sum is σ = 18286472792. Its totient is φ = 18286472790.

The previous prime is 18286472753. The next prime is 18286472833. The reversal of 18286472791 is 19727468281.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18286472791 - 2¹⁹ = 18285948503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18286472731) 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 as a sum of consecutive naturals, namely, 9143236395 + 9143236396.

It is an arithmetic number, because the mean of its divisors is an integer number (9143236396).

Almost surely, 2^18286472791 is an apocalyptic number.

18286472791 is a deficient number, since it is larger than the sum of its proper divisors (1).

18286472791 is an equidigital number, since it uses as much as digits as its factorization.

18286472791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2709504, while the sum is 55.

The spelling of 18286472791 in words is "eighteen billion, two hundred eighty-six million, four hundred seventy-two thousand, seven hundred ninety-one".