18827224859 has 2 divisors, whose sum is σ = 18827224860. Its totient is φ = 18827224858.

The previous prime is 18827224807. The next prime is 18827224883. The reversal of 18827224859 is 95842272881.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18827224859 - 2³² = 14532257563 is a prime.

It is not a weakly prime, because it can be changed into another prime (18827224259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9413612429 + 9413612430.

It is an arithmetic number, because the mean of its divisors is an integer number (9413612430).

Almost surely, 2^18827224859 is an apocalyptic number.

18827224859 is a deficient number, since it is larger than the sum of its proper divisors (1).

18827224859 is an equidigital number, since it uses as much as digits as its factorization.

18827224859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5160960, while the sum is 56.

The spelling of 18827224859 in words is "eighteen billion, eight hundred twenty-seven million, two hundred twenty-four thousand, eight hundred fifty-nine".