13949831183381 has 2 divisors, whose sum is σ = 13949831183382. Its totient is φ = 13949831183380.

The previous prime is 13949831183359. The next prime is 13949831183479. The reversal of 13949831183381 is 18338113894931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13447952451025 + 501878732356 = 3667145^2 + 708434^2 .

It is a cyclic number.

It is not a de Polignac number, because 13949831183381 - 2²⁶ = 13949764074517 is a prime.

It is a super-2 number, since 2×13949831183381² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13949831183311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6974915591690 + 6974915591691.

It is an arithmetic number, because the mean of its divisors is an integer number (6974915591691).

Almost surely, 2^{13949831183381} is an apocalyptic number.

It is an amenable number.

13949831183381 is a deficient number, since it is larger than the sum of its proper divisors (1).

13949831183381 is an equidigital number, since it uses as much as digits as its factorization.

13949831183381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13436928, while the sum is 62.

The spelling of 13949831183381 in words is "thirteen trillion, nine hundred forty-nine billion, eight hundred thirty-one million, one hundred eighty-three thousand, three hundred eighty-one".