14345321215549 has 2 divisors, whose sum is σ = 14345321215550. Its totient is φ = 14345321215548.

The previous prime is 14345321215507. The next prime is 14345321215567. The reversal of 14345321215549 is 94551212354341.

14345321215549 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., 9391834452100 + 4953486763449 = 3064610^2 + 2225643^2 .

It is a cyclic number.

It is not a de Polignac number, because 14345321215549 - 2²¹ = 14345319118397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14345325215549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7172660607774 + 7172660607775.

It is an arithmetic number, because the mean of its divisors is an integer number (7172660607775).

Almost surely, 2^{14345321215549} is an apocalyptic number.

It is an amenable number.

14345321215549 is a deficient number, since it is larger than the sum of its proper divisors (1).

14345321215549 is an equidigital number, since it uses as much as digits as its factorization.

14345321215549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592000, while the sum is 49.

The spelling of 14345321215549 in words is "fourteen trillion, three hundred forty-five billion, three hundred twenty-one million, two hundred fifteen thousand, five hundred forty-nine".