1344004402561 has 8 divisors (see below), whose sum is σ = 1414770213920. Its totient is φ = 1273241464992.

The previous prime is 1344004402547. The next prime is 1344004402579. The reversal of 1344004402561 is 1652044004431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1344004402561 - 2¹⁵ = 1344004369793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1344004402261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276901 + ... + 1662733.

It is an arithmetic number, because the mean of its divisors is an integer number (176846276740).

Almost surely, 2^{1344004402561} is an apocalyptic number.

It is an amenable number.

1344004402561 is a deficient number, since it is larger than the sum of its proper divisors (70765811359).

1344004402561 is a wasteful number, since it uses less digits than its factorization.

1344004402561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436895.

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 1344004402561 its reverse (1652044004431), we get a palindrome (2996048406992).

The spelling of 1344004402561 in words is "one trillion, three hundred forty-four billion, four million, four hundred two thousand, five hundred sixty-one".