1344563159809 has 9 divisors (see below), whose sum is σ = 1428328518537. Its totient is φ = 1265452656384.

The previous prime is 1344563159789. The next prime is 1344563159831. The reversal of 1344563159809 is 9089513654431.

The square root of 1344563159809 is 1159553.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 95694329025 + 1248868830784 = 309345^2 + 1117528^2 .

It is not a de Polignac number, because 1344563159809 - 2¹⁵ = 1344563127041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1344563159209) 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 in 8 ways as a sum of consecutive naturals, for example, 19678297 + ... + 19746505.

Almost surely, 2^{1344563159809} is an apocalyptic number.

1344563159809 is the 1159553-rd square number.

1344563159809 is the 579777-th centered octagonal number.

It is an amenable number.

1344563159809 is a deficient number, since it is larger than the sum of its proper divisors (83765358728).

1344563159809 is an frugal number, since it uses more digits than its factorization.

1344563159809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136452 (or 68226 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 58.

The spelling of 1344563159809 in words is "one trillion, three hundred forty-four billion, five hundred sixty-three million, one hundred fifty-nine thousand, eight hundred nine".