2712868657 has 4 divisors (see below), whose sum is σ = 2732670756. Its totient is φ = 2693066560.

The previous prime is 2712868643. The next prime is 2712868661. The reversal of 2712868657 is 7568682172.

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 1634665761 + 1078202896 = 40431^2 + 32836^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2712868657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2712868757) 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, 9900844 + ... + 9901117.

It is an arithmetic number, because the mean of its divisors is an integer number (683167689).

Almost surely, 2^2712868657 is an apocalyptic number.

It is an amenable number.

2712868657 is a deficient number, since it is larger than the sum of its proper divisors (19802099).

2712868657 is a wasteful number, since it uses less digits than its factorization.

2712868657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19802098.

The product of its digits is 2257920, while the sum is 52.

The square root of 2712868657 is about 52085.2057402100. The cubic root of 2712868657 is about 1394.6854044938.

The spelling of 2712868657 in words is "two billion, seven hundred twelve million, eight hundred sixty-eight thousand, six hundred fifty-seven".