1000004999989 has 2 divisors, whose sum is σ = 1000004999990. Its totient is φ = 1000004999988.

The previous prime is 1000004999909. The next prime is 1000005000013. The reversal of 1000004999989 is 9899994000001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 943650987889 + 56354012100 = 971417^2 + 237390^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000004999989 - 2³⁵ = 965645261621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000004999909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500002499994 + 500002499995.

It is an arithmetic number, because the mean of its divisors is an integer number (500002499995).

Almost surely, 2^{1000004999989} is an apocalyptic number.

It is an amenable number.

1000004999989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000004999989 is an equidigital number, since it uses as much as digits as its factorization.

1000004999989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1889568, while the sum is 58.

The spelling of 1000004999989 in words is "one trillion, four million, nine hundred ninety-nine thousand, nine hundred eighty-nine".