1344455577779 has 4 divisors (see below), whose sum is σ = 1344475586400. Its totient is φ = 1344435569160.

The previous prime is 1344455577767. The next prime is 1344455577811. The reversal of 1344455577779 is 9777755544431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344455577779 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1344455577749) 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, 9903179 + ... + 10038020.

It is an arithmetic number, because the mean of its divisors is an integer number (336118896600).

Almost surely, 2^{1344455577779} is an apocalyptic number.

1344455577779 is a deficient number, since it is larger than the sum of its proper divisors (20008621).

1344455577779 is an equidigital number, since it uses as much as digits as its factorization.

1344455577779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20008620.

The product of its digits is 518616000, while the sum is 68.

The spelling of 1344455577779 in words is "one trillion, three hundred forty-four billion, four hundred fifty-five million, five hundred seventy-seven thousand, seven hundred seventy-nine".