3989145350039 has 2 divisors, whose sum is σ = 3989145350040. Its totient is φ = 3989145350038.

The previous prime is 3989145350023. The next prime is 3989145350087. The reversal of 3989145350039 is 9300535419893.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3989145350039 - 2⁴ = 3989145350023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3989145350039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3989145350089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1994572675019 + 1994572675020.

It is an arithmetic number, because the mean of its divisors is an integer number (1994572675020).

Almost surely, 2^{3989145350039} is an apocalyptic number.

3989145350039 is a deficient number, since it is larger than the sum of its proper divisors (1).

3989145350039 is an equidigital number, since it uses as much as digits as its factorization.

3989145350039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15746400, while the sum is 59.

The spelling of 3989145350039 in words is "three trillion, nine hundred eighty-nine billion, one hundred forty-five million, three hundred fifty thousand, thirty-nine".