2681766208 has 56 divisors (see below), whose sum is σ = 5940491040. Its totient is φ = 1190622720.

The previous prime is 2681766127. The next prime is 2681766209. The reversal of 2681766208 is 8026671862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2681766209) 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 7 ways as a sum of consecutive naturals, for example, 14023 + ... + 74566.

Almost surely, 2^2681766208 is an apocalyptic number.

It is an amenable number.

2681766208 is an abundant number, since it is smaller than the sum of its proper divisors (3258724832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2681766208 is a wasteful number, since it uses less digits than its factorization.

2681766208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88655 (or 88645 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 2681766208 is about 51785.7722545488. The cubic root of 2681766208 is about 1389.3349833728.

It can be divided in two parts, 26817 and 66208, that added together give a square (93025 = 305²).

The spelling of 2681766208 in words is "two billion, six hundred eighty-one million, seven hundred sixty-six thousand, two hundred eight".