3989097711449 has 4 divisors (see below), whose sum is σ = 3991534547364. Its totient is φ = 3986660875536.

The previous prime is 3989097711437. The next prime is 3989097711497. The reversal of 3989097711449 is 9441177909893.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 823075345225 + 3166022366224 = 907235^2 + 1779332^2 .

It is a cyclic number.

It is not a de Polignac number, because 3989097711449 - 2²⁴ = 3989080934233 is a prime.

It is a super-3 number, since 3×3989097711449³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3989097711419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1218415502 + ... + 1218418775.

It is an arithmetic number, because the mean of its divisors is an integer number (997883636841).

Almost surely, 2^{3989097711449} is an apocalyptic number.

It is an amenable number.

3989097711449 is a deficient number, since it is larger than the sum of its proper divisors (2436835915).

3989097711449 is a wasteful number, since it uses less digits than its factorization.

3989097711449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436835914.

The product of its (nonzero) digits is 123451776, while the sum is 71.

The spelling of 3989097711449 in words is "three trillion, nine hundred eighty-nine billion, ninety-seven million, seven hundred eleven thousand, four hundred forty-nine".