2712744055681 has 9 divisors (see below), whose sum is σ = 2981796438369. Its totient is φ = 2466114489300.

The previous prime is 2712744055661. The next prime is 2712744055691. The reversal of 2712744055681 is 1865504472172.

The square root of 2712744055681 is 1647041.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 2712744055681 - 2¹⁵ = 2712744022913 is a prime.

It is a super-2 number, since 2×2712744055681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2712744055621) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18042586 + ... + 18192316.

Almost surely, 2^{2712744055681} is an apocalyptic number.

2712744055681 is the 1647041-st square number.

2712744055681 is the 823521-st centered octagonal number.

It is an amenable number.

2712744055681 is a deficient number, since it is larger than the sum of its proper divisors (269052382688).

2712744055681 is an frugal number, since it uses more digits than its factorization.

2712744055681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299484 (or 149742 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 52.

The spelling of 2712744055681 in words is "two trillion, seven hundred twelve billion, seven hundred forty-four million, fifty-five thousand, six hundred eighty-one".