2682873649 has 4 divisors (see below), whose sum is σ = 2840689764. Its totient is φ = 2525057536.

The previous prime is 2682873647. The next prime is 2682873691. The reversal of 2682873649 is 9463782862.

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 2494003600 + 188870049 = 49940^2 + 13743^2 .

It is a cyclic number.

It is not a de Polignac number, because 2682873649 - 2¹ = 2682873647 is a prime.

It is a super-3 number, since 3×2682873649³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2682873649.

It is not an unprimeable number, because it can be changed into a prime (2682873643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78908032 + ... + 78908065.

It is an arithmetic number, because the mean of its divisors is an integer number (710172441).

Almost surely, 2^2682873649 is an apocalyptic number.

It is an amenable number.

2682873649 is a deficient number, since it is larger than the sum of its proper divisors (157816115).

2682873649 is a wasteful number, since it uses less digits than its factorization.

2682873649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157816114.

The product of its digits is 6967296, while the sum is 55.

The square root of 2682873649 is about 51796.4636727258. The cubic root of 2682873649 is about 1389.5261999893.

The spelling of 2682873649 in words is "two billion, six hundred eighty-two million, eight hundred seventy-three thousand, six hundred forty-nine".