1838019423859 has 2 divisors, whose sum is σ = 1838019423860. Its totient is φ = 1838019423858.

The previous prime is 1838019423833. The next prime is 1838019423901. The reversal of 1838019423859 is 9583249108381.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1838019423859 - 2⁵ = 1838019423827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1838019423797 and 1838019423806.

It is not a weakly prime, because it can be changed into another prime (1838019493859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 919009711929 + 919009711930.

It is an arithmetic number, because the mean of its divisors is an integer number (919009711930).

Almost surely, 2^{1838019423859} is an apocalyptic number.

1838019423859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1838019423859 is an equidigital number, since it uses as much as digits as its factorization.

1838019423859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14929920, while the sum is 61.

The spelling of 1838019423859 in words is "one trillion, eight hundred thirty-eight billion, nineteen million, four hundred twenty-three thousand, eight hundred fifty-nine".