21424210832267 has 4 divisors (see below), whose sum is σ = 21425107529280. Its totient is φ = 21423314135256.

The previous prime is 21424210832261. The next prime is 21424210832279. The reversal of 21424210832267 is 76223801242412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21424210832267 - 2¹⁸ = 21424210570123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21424210832261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448312667 + ... + 448360452.

It is an arithmetic number, because the mean of its divisors is an integer number (5356276882320).

Almost surely, 2^{21424210832267} is an apocalyptic number.

21424210832267 is a deficient number, since it is larger than the sum of its proper divisors (896697013).

21424210832267 is an equidigital number, since it uses as much as digits as its factorization.

21424210832267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896697012.

The product of its (nonzero) digits is 516096, while the sum is 44.

The spelling of 21424210832267 in words is "twenty-one trillion, four hundred twenty-four billion, two hundred ten million, eight hundred thirty-two thousand, two hundred sixty-seven".