2723040653 has 4 divisors (see below), whose sum is σ = 2725286748. Its totient is φ = 2720794560.

The previous prime is 2723040631. The next prime is 2723040737. The reversal of 2723040653 is 3560403272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 224340484 + 2498700169 = 14978^2 + 49987^2 .

It is a cyclic number.

It is not a de Polignac number, because 2723040653 - 2²² = 2718846349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2723040623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1121228 + ... + 1123653.

It is an arithmetic number, because the mean of its divisors is an integer number (681321687).

Almost surely, 2^2723040653 is an apocalyptic number.

It is an amenable number.

2723040653 is a deficient number, since it is larger than the sum of its proper divisors (2246095).

2723040653 is a wasteful number, since it uses less digits than its factorization.

2723040653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246094.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 2723040653 is about 52182.7620292372. The cubic root of 2723040653 is about 1396.4263709481.

The spelling of 2723040653 in words is "two billion, seven hundred twenty-three million, forty thousand, six hundred fifty-three".