2019022641989 has 2 divisors, whose sum is σ = 2019022641990. Its totient is φ = 2019022641988.

The previous prime is 2019022641973. The next prime is 2019022641997. The reversal of 2019022641989 is 9891462209102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1301520468964 + 717502173025 = 1140842^2 + 847055^2 .

It is a cyclic number.

It is not a de Polignac number, because 2019022641989 - 2⁴ = 2019022641973 is a prime.

It is a super-2 number, since 2×2019022641989² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2019022641989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2019022641589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009511320994 + 1009511320995.

It is an arithmetic number, because the mean of its divisors is an integer number (1009511320995).

Almost surely, 2^{2019022641989} is an apocalyptic number.

It is an amenable number.

2019022641989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2019022641989 is an equidigital number, since it uses as much as digits as its factorization.

2019022641989 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 53.

The spelling of 2019022641989 in words is "two trillion, nineteen billion, twenty-two million, six hundred forty-one thousand, nine hundred eighty-nine".