2722747665629 has 12 divisors (see below), whose sum is σ = 2813546494908. Its totient is φ = 2634790648320.

The previous prime is 2722747665581. The next prime is 2722747665653. The reversal of 2722747665629 is 9265667472272.

It can be written as a sum of positive squares in 2 ways, for example, as 2625297556729 + 97450108900 = 1620277^2 + 312170^2 .

It is not a de Polignac number, because 2722747665629 - 2⁸ = 2722747665373 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 (2722747668629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24635837 + ... + 24746109.

It is an arithmetic number, because the mean of its divisors is an integer number (234462207909).

Almost surely, 2^{2722747665629} is an apocalyptic number.

It is an amenable number.

2722747665629 is a deficient number, since it is larger than the sum of its proper divisors (90798829279).

2722747665629 is a wasteful number, since it uses less digits than its factorization.

2722747665629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136028 (or 135997 counting only the distinct ones).

The product of its digits is 213373440, while the sum is 65.

The spelling of 2722747665629 in words is "two trillion, seven hundred twenty-two billion, seven hundred forty-seven million, six hundred sixty-five thousand, six hundred twenty-nine".