24243982849 has 4 divisors (see below), whose sum is σ = 24466404820. Its totient is φ = 24021560880.

The previous prime is 24243982811. The next prime is 24243982871. The reversal of 24243982849 is 94828934242.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11498701824 + 12745281025 = 107232^2 + 112895^2 .

It is a cyclic number.

It is not a de Polignac number, because 24243982849 - 2²³ = 24235594241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 24243982849.

It is not an unprimeable number, because it can be changed into a prime (24243986849) 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, 111210822 + ... + 111211039.

It is an arithmetic number, because the mean of its divisors is an integer number (6116601205).

Almost surely, 2^24243982849 is an apocalyptic number.

It is an amenable number.

24243982849 is a deficient number, since it is larger than the sum of its proper divisors (222421971).

24243982849 is a wasteful number, since it uses less digits than its factorization.

24243982849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222421970.

The product of its digits is 7962624, while the sum is 55.

The spelling of 24243982849 in words is "twenty-four billion, two hundred forty-three million, nine hundred eighty-two thousand, eight hundred forty-nine".