24421129819 has 4 divisors (see below), whose sum is σ = 25482918096. Its totient is φ = 23359341544.

The previous prime is 24421129807. The next prime is 24421129853. The reversal of 24421129819 is 91892112442.

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 24421129819 - 2⁵ = 24421129787 is a prime.

It is a super-2 number, since 2×24421129819² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24421126819) 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 in 3 ways as a sum of consecutive naturals, for example, 530894104 + ... + 530894149.

It is an arithmetic number, because the mean of its divisors is an integer number (6370729524).

Almost surely, 2^24421129819 is an apocalyptic number.

24421129819 is a deficient number, since it is larger than the sum of its proper divisors (1061788277).

24421129819 is a wasteful number, since it uses less digits than its factorization.

24421129819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061788276.

The product of its digits is 82944, while the sum is 43.

The spelling of 24421129819 in words is "twenty-four billion, four hundred twenty-one million, one hundred twenty-nine thousand, eight hundred nineteen".