2561561344714 has 8 divisors (see below), whose sum is σ = 3842405963748. Its totient is φ = 1280759356800.

The previous prime is 2561561344703. The next prime is 2561561344721. The reversal of 2561561344714 is 4174431651652.

It can be written as a sum of positive squares in 2 ways, for example, as 2538659062489 + 22902282225 = 1593317^2 + 151335^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10507137 + ... + 10748164.

Almost surely, 2^{2561561344714} is an apocalyptic number.

2561561344714 is a deficient number, since it is larger than the sum of its proper divisors (1280844619034).

2561561344714 is a wasteful number, since it uses less digits than its factorization.

2561561344714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21315560.

The product of its digits is 2419200, while the sum is 49.

The spelling of 2561561344714 in words is "two trillion, five hundred sixty-one billion, five hundred sixty-one million, three hundred forty-four thousand, seven hundred fourteen".