13444353997 has 2 divisors, whose sum is σ = 13444353998. Its totient is φ = 13444353996.

The previous prime is 13444353961. The next prime is 13444354031. The reversal of 13444353997 is 79935344431.

13444353997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10812048361 + 2632305636 = 103981^2 + 51306^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13444353997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13444351997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6722176998 + 6722176999.

It is an arithmetic number, because the mean of its divisors is an integer number (6722176999).

Almost surely, 2^13444353997 is an apocalyptic number.

It is an amenable number.

13444353997 is a deficient number, since it is larger than the sum of its proper divisors (1).

13444353997 is an equidigital number, since it uses as much as digits as its factorization.

13444353997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 52.

The spelling of 13444353997 in words is "thirteen billion, four hundred forty-four million, three hundred fifty-three thousand, nine hundred ninety-seven".