2765332643 has 8 divisors (see below), whose sum is σ = 2777371200. Its totient is φ = 2753307648.

The previous prime is 2765332597. The next prime is 2765332651. The reversal of 2765332643 is 3462335672.

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 2765332643 - 2¹⁸ = 2765070499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2765332643.

It is not an unprimeable number, because it can be changed into a prime (2765332243) 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, 721430 + ... + 725252.

It is an arithmetic number, because the mean of its divisors is an integer number (347171400).

Almost surely, 2^2765332643 is an apocalyptic number.

2765332643 is a deficient number, since it is larger than the sum of its proper divisors (12038557).

2765332643 is a wasteful number, since it uses less digits than its factorization.

2765332643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6781.

The product of its digits is 544320, while the sum is 41.

The square root of 2765332643 is about 52586.4302173099. The cubic root of 2765332643 is about 1403.6186392019.

The spelling of 2765332643 in words is "two billion, seven hundred sixty-five million, three hundred thirty-two thousand, six hundred forty-three".