2768395065 has 32 divisors (see below), whose sum is σ = 4464377856. Its totient is φ = 1464872640.

The previous prime is 2768395061. The next prime is 2768395079. The reversal of 2768395065 is 5605938672.

It is a happy number.

It is not a de Polignac number, because 2768395065 - 2² = 2768395061 is a prime.

It is a super-2 number, since 2×2768395065² = 15328022471832708450, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2768394999 and 2768395017.

It is not an unprimeable number, because it can be changed into a prime (2768395061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1325452 + ... + 1327538.

It is an arithmetic number, because the mean of its divisors is an integer number (139511808).

Almost surely, 2^2768395065 is an apocalyptic number.

It is an amenable number.

2768395065 is a deficient number, since it is larger than the sum of its proper divisors (1695982791).

2768395065 is a wasteful number, since it uses less digits than its factorization.

2768395065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The square root of 2768395065 is about 52615.5401473747. The cubic root of 2768395065 is about 1404.1365861511.

The spelling of 2768395065 in words is "two billion, seven hundred sixty-eight million, three hundred ninety-five thousand, sixty-five".