3989541952889 has 8 divisors (see below), whose sum is σ = 3999331584000. Its totient is φ = 3979762070752.

The previous prime is 3989541952873. The next prime is 3989541952897. The reversal of 3989541952889 is 9882591459893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3989541952889 - 2⁴ = 3989541952873 is a prime.

It is a super-2 number, since 2×3989541952889² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3989541952289) 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 in 7 ways as a sum of consecutive naturals, for example, 1617449 + ... + 3255030.

It is an arithmetic number, because the mean of its divisors is an integer number (499916448000).

Almost surely, 2^{3989541952889} is an apocalyptic number.

It is an amenable number.

3989541952889 is a deficient number, since it is larger than the sum of its proper divisors (9789631111).

3989541952889 is a wasteful number, since it uses less digits than its factorization.

3989541952889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4874487.

The product of its digits is 2015539200, while the sum is 80.

The spelling of 3989541952889 in words is "three trillion, nine hundred eighty-nine billion, five hundred forty-one million, nine hundred fifty-two thousand, eight hundred eighty-nine".