13249840843 has 8 divisors (see below), whose sum is σ = 13439483280. Its totient is φ = 13061344800.

The previous prime is 13249840831. The next prime is 13249840883. The reversal of 13249840843 is 34804894231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13249840843 - 2⁵ = 13249840811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13249840793 and 13249840802.

It is not an unprimeable number, because it can be changed into a prime (13249840883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263305 + ... + 309562.

It is an arithmetic number, because the mean of its divisors is an integer number (1679935410).

Almost surely, 2^13249840843 is an apocalyptic number.

13249840843 is a deficient number, since it is larger than the sum of its proper divisors (189642437).

13249840843 is a wasteful number, since it uses less digits than its factorization.

13249840843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573197.

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 13249840843 in words is "thirteen billion, two hundred forty-nine million, eight hundred forty thousand, eight hundred forty-three".