2726864217 has 32 divisors (see below), whose sum is σ = 5036636160. Its totient is φ = 1416551760.

The previous prime is 2726864213. The next prime is 2726864237. The reversal of 2726864217 is 7124686272.

It is a happy number.

It is not a de Polignac number, because 2726864217 - 2² = 2726864213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2726864213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 653733 + ... + 657890.

It is an arithmetic number, because the mean of its divisors is an integer number (157394880).

Almost surely, 2^2726864217 is an apocalyptic number.

2726864217 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2726864217 is a deficient number, since it is larger than the sum of its proper divisors (2309771943).

2726864217 is a wasteful number, since it uses less digits than its factorization.

2726864217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311650 (or 1311644 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 2726864217 is about 52219.3854521479. The cubic root of 2726864217 is about 1397.0796637376.

The spelling of 2726864217 in words is "two billion, seven hundred twenty-six million, eight hundred sixty-four thousand, two hundred seventeen".