13839383521969 has 2 divisors, whose sum is σ = 13839383521970. Its totient is φ = 13839383521968.

The previous prime is 13839383521967. The next prime is 13839383521973. The reversal of 13839383521969 is 96912538393831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10743402510369 + 3095981011600 = 3277713^2 + 1759540^2 .

It is a cyclic number.

It is not a de Polignac number, because 13839383521969 - 2¹ = 13839383521967 is a prime.

It is a super-3 number, since 3×13839383521969³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 13839383521967, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 13839383521898 and 13839383521907.

It is not a weakly prime, because it can be changed into another prime (13839383521967) 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 as a sum of consecutive naturals, namely, 6919691760984 + 6919691760985.

It is an arithmetic number, because the mean of its divisors is an integer number (6919691760985).

Almost surely, 2^{13839383521969} is an apocalyptic number.

It is an amenable number.

13839383521969 is a deficient number, since it is larger than the sum of its proper divisors (1).

13839383521969 is an equidigital number, since it uses as much as digits as its factorization.

13839383521969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226748160, while the sum is 70.

The spelling of 13839383521969 in words is "thirteen trillion, eight hundred thirty-nine billion, three hundred eighty-three million, five hundred twenty-one thousand, nine hundred sixty-nine".