13994270849 has 16 divisors (see below), whose sum is σ = 15869078400. Its totient is φ = 12233949696.

The previous prime is 13994270819. The next prime is 13994270861. The reversal of 13994270849 is 94807249931.

It is a cyclic number.

It is not a de Polignac number, because 13994270849 - 2²⁰ = 13993222273 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13994270794 and 13994270803.

It is not an unprimeable number, because it can be changed into a prime (13994270819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 966737 + ... + 981105.

It is an arithmetic number, because the mean of its divisors is an integer number (991817400).

Almost surely, 2^13994270849 is an apocalyptic number.

13994270849 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13994270849 is a deficient number, since it is larger than the sum of its proper divisors (1874807551).

13994270849 is a wasteful number, since it uses less digits than its factorization.

13994270849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18344.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 13994270849 in words is "thirteen billion, nine hundred ninety-four million, two hundred seventy thousand, eight hundred forty-nine".