2680860065 has 8 divisors (see below), whose sum is σ = 3464496168. Its totient is φ = 1979712000.

The previous prime is 2680860053. The next prime is 2680860163. The reversal of 2680860065 is 5600680862.

It can be written as a sum of positive squares in 4 ways, for example, as 1658944 + 2679201121 = 1288^2 + 51761^2 .

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

It is not a de Polignac number, because 2680860065 - 2⁸ = 2680859809 is a prime.

It is a super-2 number, since 2×2680860065² = 14374021376223608450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20621936 + ... + 20622065.

It is an arithmetic number, because the mean of its divisors is an integer number (433062021).

Almost surely, 2^2680860065 is an apocalyptic number.

It is an amenable number.

2680860065 is a deficient number, since it is larger than the sum of its proper divisors (783636103).

2680860065 is a wasteful number, since it uses less digits than its factorization.

2680860065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41244019.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 2680860065 is about 51777.0225582739. The cubic root of 2680860065 is about 1389.1784847704.

The spelling of 2680860065 in words is "two billion, six hundred eighty million, eight hundred sixty thousand, sixty-five".