8424236324249 has 4 divisors (see below), whose sum is σ = 8867617183440. Its totient is φ = 7980855465060.

The previous prime is 8424236324239. The next prime is 8424236324261. The reversal of 8424236324249 is 9424236324248.

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 a de Polignac number, because none of the positive numbers 2^k-8424236324249 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 8424236324249.

It is not an unprimeable number, because it can be changed into a prime (8424236324239) 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, 221690429567 + ... + 221690429604.

It is an arithmetic number, because the mean of its divisors is an integer number (2216904295860).

Almost surely, 2^{8424236324249} is an apocalyptic number.

It is an amenable number.

8424236324249 is a deficient number, since it is larger than the sum of its proper divisors (443380859191).

8424236324249 is a wasteful number, since it uses less digits than its factorization.

8424236324249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443380859190.

The product of its digits is 15925248, while the sum is 53.

Subtracting 8424236324249 from its reverse (9424236324248), we obtain a palindrome (999999999999).

The spelling of 8424236324249 in words is "eight trillion, four hundred twenty-four billion, two hundred thirty-six million, three hundred twenty-four thousand, two hundred forty-nine".