21884607907 has 2 divisors, whose sum is σ = 21884607908. Its totient is φ = 21884607906.

The previous prime is 21884607881. The next prime is 21884607917. The reversal of 21884607907 is 70970648812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21884607907 - 2¹⁹ = 21884083619 is a prime.

It is not a weakly prime, because it can be changed into another prime (21884607917) by changing a digit.

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 as a sum of consecutive naturals, namely, 10942303953 + 10942303954.

It is an arithmetic number, because the mean of its divisors is an integer number (10942303954).

Almost surely, 2^21884607907 is an apocalyptic number.

21884607907 is a deficient number, since it is larger than the sum of its proper divisors (1).

21884607907 is an equidigital number, since it uses as much as digits as its factorization.

21884607907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The spelling of 21884607907 in words is "twenty-one billion, eight hundred eighty-four million, six hundred seven thousand, nine hundred seven".