4881808691 has 2 divisors, whose sum is σ = 4881808692. Its totient is φ = 4881808690.

The previous prime is 4881808667. The next prime is 4881808697. The reversal of 4881808691 is 1968081884.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4881808691 - 2¹⁸ = 4881546547 is a prime.

It is not a weakly prime, because it can be changed into another prime (4881808697) 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 as a sum of consecutive naturals, namely, 2440904345 + 2440904346.

It is an arithmetic number, because the mean of its divisors is an integer number (2440904346).

Almost surely, 2^4881808691 is an apocalyptic number.

4881808691 is a deficient number, since it is larger than the sum of its proper divisors (1).

4881808691 is an equidigital number, since it uses as much as digits as its factorization.

4881808691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 884736, while the sum is 53.

The square root of 4881808691 is about 69869.9412551635. The cubic root of 4881808691 is about 1696.3947461127.

The spelling of 4881808691 in words is "four billion, eight hundred eighty-one million, eight hundred eight thousand, six hundred ninety-one".