21033245627 has 2 divisors, whose sum is σ = 21033245628. Its totient is φ = 21033245626.

The previous prime is 21033245609. The next prime is 21033245771. The reversal of 21033245627 is 72654233012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21033245627 - 2²⁰ = 21032197051 is a prime.

It is not a weakly prime, because it can be changed into another prime (21033245227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516622813 + 10516622814.

It is an arithmetic number, because the mean of its divisors is an integer number (10516622814).

Almost surely, 2^21033245627 is an apocalyptic number.

21033245627 is a deficient number, since it is larger than the sum of its proper divisors (1).

21033245627 is an equidigital number, since it uses as much as digits as its factorization.

21033245627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 35.

Adding to 21033245627 its reverse (72654233012), we get a palindrome (93687478639).

The spelling of 21033245627 in words is "twenty-one billion, thirty-three million, two hundred forty-five thousand, six hundred twenty-seven".