13994994751 has 4 divisors (see below), whose sum is σ = 14101826904. Its totient is φ = 13888162600.

The previous prime is 13994994721. The next prime is 13994994763. The reversal of 13994994751 is 15749949931.

13994994751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13994994751 - 2¹¹ = 13994992703 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 13994994751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13994994721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53415880 + ... + 53416141.

It is an arithmetic number, because the mean of its divisors is an integer number (3525456726).

Almost surely, 2^13994994751 is an apocalyptic number.

13994994751 is a deficient number, since it is larger than the sum of its proper divisors (106832153).

13994994751 is a wasteful number, since it uses less digits than its factorization.

13994994751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106832152.

The product of its digits is 11022480, while the sum is 61.

The spelling of 13994994751 in words is "thirteen billion, nine hundred ninety-four million, nine hundred ninety-four thousand, seven hundred fifty-one".