24642212421 has 4 divisors (see below), whose sum is σ = 32856283232. Its totient is φ = 16428141612.

The previous prime is 24642212407. The next prime is 24642212447. The reversal of 24642212421 is 12421224642.

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 not a de Polignac number, because 24642212421 - 2²⁹ = 24105341509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24642212461) 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, 4107035401 + ... + 4107035406.

It is an arithmetic number, because the mean of its divisors is an integer number (8214070808).

Almost surely, 2^24642212421 is an apocalyptic number.

It is an amenable number.

24642212421 is a deficient number, since it is larger than the sum of its proper divisors (8214070811).

24642212421 is an equidigital number, since it uses as much as digits as its factorization.

24642212421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8214070810.

The product of its digits is 12288, while the sum is 30.

It can be divided in two parts, 2464221 and 2421, that added together give a palindrome (2466642).

The spelling of 24642212421 in words is "twenty-four billion, six hundred forty-two million, two hundred twelve thousand, four hundred twenty-one".