3989145349998 has 16 divisors (see below), whose sum is σ = 8864767444560. Its totient is φ = 1329715116648.

The previous prime is 3989145349907. The next prime is 3989145350023. The reversal of 3989145349998 is 8999435419893.

3989145349998 is a `hidden beast` number, since 3 + 9 + 89 + 1 + 45 + 3 + 499 + 9 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36936530965 + ... + 36936531072.

It is an arithmetic number, because the mean of its divisors is an integer number (554047965285).

Almost surely, 2^{3989145349998} is an apocalyptic number.

3989145349998 is an abundant number, since it is smaller than the sum of its proper divisors (4875622094562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3989145349998 is a wasteful number, since it uses less digits than its factorization.

3989145349998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73873062048 (or 73873062042 counting only the distinct ones).

The product of its digits is 2720977920, while the sum is 81.

The spelling of 3989145349998 in words is "three trillion, nine hundred eighty-nine billion, one hundred forty-five million, three hundred forty-nine thousand, nine hundred ninety-eight".