1344453633397 has 6 divisors (see below), whose sum is σ = 1563956267478. Its totient is φ = 1152388828584.

The previous prime is 1344453633389. The next prime is 1344453633461. The reversal of 1344453633397 is 7933363544431.

It can be written as a sum of positive squares in only one way, i.e., 727798378321 + 616655255076 = 853111^2 + 785274^2 .

It is not a de Polignac number, because 1344453633397 - 2³ = 1344453633389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344453633097) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13718914578 + ... + 13718914675.

It is an arithmetic number, because the mean of its divisors is an integer number (260659377913).

Almost surely, 2^{1344453633397} is an apocalyptic number.

It is an amenable number.

1344453633397 is a deficient number, since it is larger than the sum of its proper divisors (219502634081).

1344453633397 is an equidigital number, since it uses as much as digits as its factorization.

1344453633397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27437829267 (or 27437829260 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 55.

The spelling of 1344453633397 in words is "one trillion, three hundred forty-four billion, four hundred fifty-three million, six hundred thirty-three thousand, three hundred ninety-seven".