2722747665631 has 16 divisors (see below), whose sum is σ = 3222307045440. Its totient is φ = 2251001894400.

The previous prime is 2722747665581. The next prime is 2722747665653. The reversal of 2722747665631 is 1365667472272.

It is not a de Polignac number, because 2722747665631 - 2⁹ = 2722747665119 is a prime.

It is a super-2 number, since 2×2722747665631² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2722747665431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6665820 + ... + 7062481.

It is an arithmetic number, because the mean of its divisors is an integer number (201394190340).

Almost surely, 2^{2722747665631} is an apocalyptic number.

2722747665631 is a deficient number, since it is larger than the sum of its proper divisors (499559379809).

2722747665631 is a wasteful number, since it uses less digits than its factorization.

2722747665631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13729314.

The product of its digits is 35562240, while the sum is 58.

The spelling of 2722747665631 in words is "two trillion, seven hundred twenty-two billion, seven hundred forty-seven million, six hundred sixty-five thousand, six hundred thirty-one".