2643272765 has 8 divisors (see below), whose sum is σ = 3625059840. Its totient is φ = 1812529872.

The previous prime is 2643272741. The next prime is 2643272767. The reversal of 2643272765 is 5672723462.

2643272765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2643272765 - 2⁶ = 2643272701 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643272767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37761005 + ... + 37761074.

It is an arithmetic number, because the mean of its divisors is an integer number (453132480).

Almost surely, 2^2643272765 is an apocalyptic number.

It is an amenable number.

2643272765 is a deficient number, since it is larger than the sum of its proper divisors (981787075).

2643272765 is an equidigital number, since it uses as much as digits as its factorization.

2643272765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75522091.

The product of its digits is 846720, while the sum is 44.

The square root of 2643272765 is about 51412.7685016086. The cubic root of 2643272765 is about 1382.6555261051.

The spelling of 2643272765 in words is "two billion, six hundred forty-three million, two hundred seventy-two thousand, seven hundred sixty-five".