1969233780589 has 2 divisors, whose sum is σ = 1969233780590. Its totient is φ = 1969233780588.

The previous prime is 1969233780491. The next prime is 1969233780593. The reversal of 1969233780589 is 9850873329691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1763761956489 + 205471824100 = 1328067^2 + 453290^2 .

It is a cyclic number.

It is not a de Polignac number, because 1969233780589 - 2¹⁵ = 1969233747821 is a prime.

It is a super-2 number, since 2×1969233780589² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1969233780389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984616890294 + 984616890295.

It is an arithmetic number, because the mean of its divisors is an integer number (984616890295).

Almost surely, 2^{1969233780589} is an apocalyptic number.

It is an amenable number.

1969233780589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1969233780589 is an equidigital number, since it uses as much as digits as its factorization.

1969233780589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 176359680, while the sum is 70.

The spelling of 1969233780589 in words is "one trillion, nine hundred sixty-nine billion, two hundred thirty-three million, seven hundred eighty thousand, five hundred eighty-nine".