3984982118917 has 8 divisors (see below), whose sum is σ = 4002258273624. Its totient is φ = 3967707445248.

The previous prime is 3984982118911. The next prime is 3984982118969. The reversal of 3984982118917 is 7198112894893.

It can be written as a sum of positive squares in 4 ways, for example, as 23186457441 + 3961795661476 = 152271^2 + 1990426^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3984982118917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3984982118911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5204203 + ... + 5920615.

It is an arithmetic number, because the mean of its divisors is an integer number (500282284203).

Almost surely, 2^{3984982118917} is an apocalyptic number.

It is an amenable number.

3984982118917 is a deficient number, since it is larger than the sum of its proper divisors (17276154707).

3984982118917 is a wasteful number, since it uses less digits than its factorization.

3984982118917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740519.

The product of its digits is 62705664, while the sum is 70.

The spelling of 3984982118917 in words is "three trillion, nine hundred eighty-four billion, nine hundred eighty-two million, one hundred eighteen thousand, nine hundred seventeen".