1828898127409 has 2 divisors, whose sum is σ = 1828898127410. Its totient is φ = 1828898127408.

The previous prime is 1828898127391. The next prime is 1828898127421. The reversal of 1828898127409 is 9047218988281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1727489635600 + 101408491809 = 1314340^2 + 318447^2 .

It is a cyclic number.

It is not a de Polignac number, because 1828898127409 - 2⁵ = 1828898127377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1828898127449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 914449063704 + 914449063705.

It is an arithmetic number, because the mean of its divisors is an integer number (914449063705).

Almost surely, 2^{1828898127409} is an apocalyptic number.

It is an amenable number.

1828898127409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1828898127409 is an equidigital number, since it uses as much as digits as its factorization.

1828898127409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37158912, while the sum is 67.

The spelling of 1828898127409 in words is "one trillion, eight hundred twenty-eight billion, eight hundred ninety-eight million, one hundred twenty-seven thousand, four hundred nine".