1830409291189 has 2 divisors, whose sum is σ = 1830409291190. Its totient is φ = 1830409291188.

The previous prime is 1830409291079. The next prime is 1830409291201. The reversal of 1830409291189 is 9811929040381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1408743479025 + 421665812164 = 1186905^2 + 649358^2 .

It is a cyclic number.

It is not a de Polignac number, because 1830409291189 - 2¹⁵ = 1830409258421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1830209291189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 915204645594 + 915204645595.

It is an arithmetic number, because the mean of its divisors is an integer number (915204645595).

Almost surely, 2^{1830409291189} is an apocalyptic number.

It is an amenable number.

1830409291189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1830409291189 is an equidigital number, since it uses as much as digits as its factorization.

1830409291189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 55.

The spelling of 1830409291189 in words is "one trillion, eight hundred thirty billion, four hundred nine million, two hundred ninety-one thousand, one hundred eighty-nine".