2680946205965 has 4 divisors (see below), whose sum is σ = 3217135447164. Its totient is φ = 2144756964768.

The previous prime is 2680946205893. The next prime is 2680946205997. The reversal of 2680946205965 is 5695026490862.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1841549419369 + 839396786596 = 1357037^2 + 916186^2 .

It is a cyclic number.

It is not a de Polignac number, because 2680946205965 - 2²² = 2680942011661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2680946205898 and 2680946205907.

It is a congruent number.

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, 268094620592 + ... + 268094620601.

It is an arithmetic number, because the mean of its divisors is an integer number (804283861791).

Almost surely, 2^{2680946205965} is an apocalyptic number.

It is an amenable number.

2680946205965 is a deficient number, since it is larger than the sum of its proper divisors (536189241199).

2680946205965 is an equidigital number, since it uses as much as digits as its factorization.

2680946205965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536189241198.

The product of its (nonzero) digits is 55987200, while the sum is 62.

The spelling of 2680946205965 in words is "two trillion, six hundred eighty billion, nine hundred forty-six million, two hundred five thousand, nine hundred sixty-five".