2681408210 has 32 divisors (see below), whose sum is σ = 5226569712. Its totient is φ = 984579840.

The previous prime is 2681408203. The next prime is 2681408227. The reversal of 2681408210 is 128041862.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 458002801 + 2223405409 = 21401^2 + 47153^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33449 + ... + 80508.

Almost surely, 2^2681408210 is an apocalyptic number.

2681408210 is a deficient number, since it is larger than the sum of its proper divisors (2545161502).

2681408210 is a wasteful number, since it uses less digits than its factorization.

2681408210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114158.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 2681408210 is about 51782.3156106407. The cubic root of 2681408210 is about 1389.2731582868.

The spelling of 2681408210 in words is "two billion, six hundred eighty-one million, four hundred eight thousand, two hundred ten".