3989145350079 has 16 divisors (see below), whose sum is σ = 5998051607040. Its totient is φ = 2619737243640.

The previous prime is 3989145350039. The next prime is 3989145350087. The reversal of 3989145350079 is 9700535419893.

3989145350079 is a `hidden beast` number, since 3 + 9 + 8 + 9 + 1 + 4 + 53 + 500 + 79 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-3989145350079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3989145349998 and 3989145350025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3989145350039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1102581207 + ... + 1102584824.

It is an arithmetic number, because the mean of its divisors is an integer number (374878225440).

Almost surely, 2^{3989145350079} is an apocalyptic number.

3989145350079 is a deficient number, since it is larger than the sum of its proper divisors (2008906256961).

3989145350079 is a wasteful number, since it uses less digits than its factorization.

3989145350079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205166107 (or 2205166101 counting only the distinct ones).

The product of its (nonzero) digits is 36741600, while the sum is 63.

The spelling of 3989145350079 in words is "three trillion, nine hundred eighty-nine billion, one hundred forty-five million, three hundred fifty thousand, seventy-nine".