2712716561 has 2 divisors, whose sum is σ = 2712716562. Its totient is φ = 2712716560.

The previous prime is 2712716557. The next prime is 2712716603. The reversal of 2712716561 is 1656172172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1698676225 + 1014040336 = 41215^2 + 31844^2 .

It is a cyclic number.

It is not a de Polignac number, because 2712716561 - 2² = 2712716557 is a prime.

It is a super-2 number, since 2×2712716561² = 14717662280647333442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2712716551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1356358280 + 1356358281.

It is an arithmetic number, because the mean of its divisors is an integer number (1356358281).

Almost surely, 2^2712716561 is an apocalyptic number.

It is an amenable number.

2712716561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2712716561 is an equidigital number, since it uses as much as digits as its factorization.

2712716561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 38.

The square root of 2712716561 is about 52083.7456506346. The cubic root of 2712716561 is about 1394.6593398291.

The spelling of 2712716561 in words is "two billion, seven hundred twelve million, seven hundred sixteen thousand, five hundred sixty-one".