9983361915389 has 4 divisors (see below), whose sum is σ = 9983756524380. Its totient is φ = 9982967306400.

The previous prime is 9983361915337. The next prime is 9983361915391. The reversal of 9983361915389 is 9835191633899.

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 7255965816100 + 2727396099289 = 2693690^2 + 1651483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9983361915389 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 (9983361915889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197266544 + ... + 197317145.

It is an arithmetic number, because the mean of its divisors is an integer number (2495939131095).

Almost surely, 2^{9983361915389} is an apocalyptic number.

It is an amenable number.

9983361915389 is a deficient number, since it is larger than the sum of its proper divisors (394608991).

9983361915389 is a wasteful number, since it uses less digits than its factorization.

9983361915389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394608990.

The product of its digits is 340122240, while the sum is 74.

The spelling of 9983361915389 in words is "nine trillion, nine hundred eighty-three billion, three hundred sixty-one million, nine hundred fifteen thousand, three hundred eighty-nine".