2827908681 has 32 divisors (see below), whose sum is σ = 4279726080. Its totient is φ = 1646568000.

The previous prime is 2827908667. The next prime is 2827908773. The reversal of 2827908681 is 1868097282.

It is a happy number.

It is not a de Polignac number, because 2827908681 - 2⁹ = 2827908169 is a prime.

It is a super-2 number, since 2×2827908681² = 15994135016150319522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2827908641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 732406 + ... + 736256.

It is an arithmetic number, because the mean of its divisors is an integer number (133741440).

Almost surely, 2^2827908681 is an apocalyptic number.

It is an amenable number.

2827908681 is a deficient number, since it is larger than the sum of its proper divisors (1451817399).

2827908681 is a wasteful number, since it uses less digits than its factorization.

2827908681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4877.

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 2827908681 is about 53178.0845931856. The cubic root of 2827908681 is about 1414.1271498021.

The spelling of 2827908681 in words is "two billion, eight hundred twenty-seven million, nine hundred eight thousand, six hundred eighty-one".