2686560299329 has 27 divisors (see below), whose sum is σ = 2854825513731. Its totient is φ = 2527843943520.

The previous prime is 2686560299323. The next prime is 2686560299347. The reversal of 2686560299329 is 9239920656862.

The square root of 2686560299329 is 1639073.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1815548740929 + 871011558400 = 1347423^2 + 933280^2 .

It is not a de Polignac number, because 2686560299329 - 2⁷ = 2686560299201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2686560299323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8751010594 + ... + 8751010900.

Almost surely, 2^{2686560299329} is an apocalyptic number.

2686560299329 is the 1639073-rd square number.

2686560299329 is the 819537-th centered octagonal number.

It is an amenable number.

2686560299329 is a deficient number, since it is larger than the sum of its proper divisors (168265214402).

2686560299329 is an frugal number, since it uses more digits than its factorization.

2686560299329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 151165440, while the sum is 67.

The spelling of 2686560299329 in words is "two trillion, six hundred eighty-six billion, five hundred sixty million, two hundred ninety-nine thousand, three hundred twenty-nine".