24226428821 has 4 divisors (see below), whose sum is σ = 27687347232. Its totient is φ = 20765510412.

The previous prime is 24226428817. The next prime is 24226428823. The reversal of 24226428821 is 12882462242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 24226428821 - 2² = 24226428817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24226428823) 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 3 ways as a sum of consecutive naturals, for example, 1730459195 + ... + 1730459208.

It is an arithmetic number, because the mean of its divisors is an integer number (6921836808).

Almost surely, 2^24226428821 is an apocalyptic number.

It is an amenable number.

24226428821 is a deficient number, since it is larger than the sum of its proper divisors (3460918411).

24226428821 is an equidigital number, since it uses as much as digits as its factorization.

24226428821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460918410.

The product of its digits is 196608, while the sum is 41.

The spelling of 24226428821 in words is "twenty-four billion, two hundred twenty-six million, four hundred twenty-eight thousand, eight hundred twenty-one".