2681774213 has 4 divisors (see below), whose sum is σ = 2681910348. Its totient is φ = 2681638080.

The previous prime is 2681774149. The next prime is 2681774231. The reversal of 2681774213 is 3124771862.

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 2618061889 + 63712324 = 51167^2 + 7982^2 .

It is a cyclic number.

It is not a de Polignac number, because 2681774213 - 2⁶ = 2681774149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2681774233) 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, 32228 + ... + 80013.

It is an arithmetic number, because the mean of its divisors is an integer number (670477587).

Almost surely, 2^2681774213 is an apocalyptic number.

It is an amenable number.

2681774213 is a deficient number, since it is larger than the sum of its proper divisors (136135).

2681774213 is a wasteful number, since it uses less digits than its factorization.

2681774213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136134.

The product of its digits is 112896, while the sum is 41.

The square root of 2681774213 is about 51785.8495440598. The cubic root of 2681774213 is about 1389.3363657473.

The spelling of 2681774213 in words is "two billion, six hundred eighty-one million, seven hundred seventy-four thousand, two hundred thirteen".