2749233665 has 8 divisors (see below), whose sum is σ = 3300297000. Its totient is φ = 2198575872.

The previous prime is 2749233661. The next prime is 2749233689. The reversal of 2749233665 is 5663329472.

It can be written as a sum of positive squares in 4 ways, for example, as 48664576 + 2700569089 = 6976^2 + 51967^2 .

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 2749233665 - 2² = 2749233661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2749233661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86264 + ... + 113753.

It is an arithmetic number, because the mean of its divisors is an integer number (412537125).

Almost surely, 2^2749233665 is an apocalyptic number.

It is an amenable number.

2749233665 is a deficient number, since it is larger than the sum of its proper divisors (551063335).

2749233665 is a wasteful number, since it uses less digits than its factorization.

2749233665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202771.

The product of its digits is 1632960, while the sum is 47.

The square root of 2749233665 is about 52433.1351818676. The cubic root of 2749233665 is about 1400.8895137942.

The spelling of 2749233665 in words is "two billion, seven hundred forty-nine million, two hundred thirty-three thousand, six hundred sixty-five".