190838398589 has 2 divisors, whose sum is σ = 190838398590. Its totient is φ = 190838398588.

The previous prime is 190838398559. The next prime is 190838398603. The reversal of 190838398589 is 985893838091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110433259225 + 80405139364 = 332315^2 + 283558^2 .

It is a cyclic number.

It is not a de Polignac number, because 190838398589 - 2¹⁶ = 190838333053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190838398559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95419199294 + 95419199295.

It is an arithmetic number, because the mean of its divisors is an integer number (95419199295).

Almost surely, 2^190838398589 is an apocalyptic number.

It is an amenable number.

190838398589 is a deficient number, since it is larger than the sum of its proper divisors (1).

190838398589 is an equidigital number, since it uses as much as digits as its factorization.

190838398589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134369280, while the sum is 71.

The spelling of 190838398589 in words is "one hundred ninety billion, eight hundred thirty-eight million, three hundred ninety-eight thousand, five hundred eighty-nine".