1449343908769 has 3 divisors (see below), whose sum is σ = 1449345112657. Its totient is φ = 1449342704882.

The previous prime is 1449343908739. The next prime is 1449343908787. The reversal of 1449343908769 is 9678093439441.

The square root of 1449343908769 is 1203887.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1449343908769 - 2²⁵ = 1449310354337 is a prime.

It is a super-2 number, since 2×1449343908769² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1449343908709) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 601944 + ... + 1805830.

Almost surely, 2^{1449343908769} is an apocalyptic number.

1449343908769 is the 1203887-th square number.

1449343908769 is the 601944-th centered octagonal number.

It is an amenable number.

1449343908769 is a deficient number, since it is larger than the sum of its proper divisors (1203888).

1449343908769 is an frugal number, since it uses more digits than its factorization.

1449343908769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407774 (or 1203887 counting only the distinct ones).

The product of its (nonzero) digits is 141087744, while the sum is 67.

The spelling of 1449343908769 in words is "one trillion, four hundred forty-nine billion, three hundred forty-three million, nine hundred eight thousand, seven hundred sixty-nine".