18428286829 has 2 divisors, whose sum is σ = 18428286830. Its totient is φ = 18428286828.

The previous prime is 18428286809. The next prime is 18428286853. The reversal of 18428286829 is 92868282481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18269577225 + 158709604 = 135165^2 + 12598^2 .

It is a cyclic number.

It is not a de Polignac number, because 18428286829 - 2³¹ = 16280803181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18428286809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9214143414 + 9214143415.

It is an arithmetic number, because the mean of its divisors is an integer number (9214143415).

Almost surely, 2^18428286829 is an apocalyptic number.

It is an amenable number.

18428286829 is a deficient number, since it is larger than the sum of its proper divisors (1).

18428286829 is an equidigital number, since it uses as much as digits as its factorization.

18428286829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7077888, while the sum is 58.

The spelling of 18428286829 in words is "eighteen billion, four hundred twenty-eight million, two hundred eighty-six thousand, eight hundred twenty-nine".