21088588571 has 2 divisors, whose sum is σ = 21088588572. Its totient is φ = 21088588570.

The previous prime is 21088588463. The next prime is 21088588603. The reversal of 21088588571 is 17588588012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21088588571 - 2¹⁴ = 21088572187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (21088581571) 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, 10544294285 + 10544294286.

It is an arithmetic number, because the mean of its divisors is an integer number (10544294286).

Almost surely, 2^21088588571 is an apocalyptic number.

21088588571 is a deficient number, since it is larger than the sum of its proper divisors (1).

21088588571 is an equidigital number, since it uses as much as digits as its factorization.

21088588571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1433600, while the sum is 53.

The spelling of 21088588571 in words is "twenty-one billion, eighty-eight million, five hundred eighty-eight thousand, five hundred seventy-one".