21814232885 has 8 divisors (see below), whose sum is σ = 26269579680. Its totient is φ = 17389719504.

The previous prime is 21814232879. The next prime is 21814232887. The reversal of 21814232885 is 58823241812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21814232885 - 2¹⁰ = 21814231861 is a prime.

It is a super-2 number, since 2×21814232885² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21814232887) 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 in 7 ways as a sum of consecutive naturals, for example, 7706795 + ... + 7709624.

It is an arithmetic number, because the mean of its divisors is an integer number (3283697460).

Almost surely, 2^21814232885 is an apocalyptic number.

It is an amenable number.

21814232885 is a deficient number, since it is larger than the sum of its proper divisors (4455346795).

21814232885 is a wasteful number, since it uses less digits than its factorization.

21814232885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15416707.

The product of its digits is 245760, while the sum is 44.

The spelling of 21814232885 in words is "twenty-one billion, eight hundred fourteen million, two hundred thirty-two thousand, eight hundred eighty-five".