1344544565431 has 4 divisors (see below), whose sum is σ = 1345864041000. Its totient is φ = 1343225089864.

The previous prime is 1344544565423. The next prime is 1344544565491. The reversal of 1344544565431 is 1345654454431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1344544565431 - 2³ = 1344544565423 is a prime.

It is a super-2 number, since 2×1344544565431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344544565491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659736256 + ... + 659738293.

It is an arithmetic number, because the mean of its divisors is an integer number (336466010250).

Almost surely, 2^{1344544565431} is an apocalyptic number.

1344544565431 is a deficient number, since it is larger than the sum of its proper divisors (1319475569).

1344544565431 is a wasteful number, since it uses less digits than its factorization.

1344544565431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319475568.

The product of its digits is 6912000, while the sum is 49.

The spelling of 1344544565431 in words is "one trillion, three hundred forty-four billion, five hundred forty-four million, five hundred sixty-five thousand, four hundred thirty-one".