1389845404999 has 2 divisors, whose sum is σ = 1389845405000. Its totient is φ = 1389845404998.

The previous prime is 1389845404991. The next prime is 1389845405107. The reversal of 1389845404999 is 9994045489831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1389845404999 - 2³ = 1389845404991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1389845404991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694922702499 + 694922702500.

It is an arithmetic number, because the mean of its divisors is an integer number (694922702500).

Almost surely, 2^{1389845404999} is an apocalyptic number.

1389845404999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1389845404999 is an equidigital number, since it uses as much as digits as its factorization.

1389845404999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403107840, while the sum is 73.

The spelling of 1389845404999 in words is "one trillion, three hundred eighty-nine billion, eight hundred forty-five million, four hundred four thousand, nine hundred ninety-nine".