13944243941 has 2 divisors, whose sum is σ = 13944243942. Its totient is φ = 13944243940.

The previous prime is 13944243899. The next prime is 13944243947. The reversal of 13944243941 is 14934244931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12637132225 + 1307111716 = 112415^2 + 36154^2 .

It is a cyclic number.

It is not a de Polignac number, because 13944243941 - 2⁶ = 13944243877 is a prime.

It is a super-2 number, since 2×13944243941² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13944243892 and 13944243901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13944243947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6972121970 + 6972121971.

It is an arithmetic number, because the mean of its divisors is an integer number (6972121971).

Almost surely, 2^13944243941 is an apocalyptic number.

It is an amenable number.

13944243941 is a deficient number, since it is larger than the sum of its proper divisors (1).

13944243941 is an equidigital number, since it uses as much as digits as its factorization.

13944243941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 44.

The spelling of 13944243941 in words is "thirteen billion, nine hundred forty-four million, two hundred forty-three thousand, nine hundred forty-one".