13964749387 has 4 divisors (see below), whose sum is σ = 13975322056. Its totient is φ = 13954176720.

The previous prime is 13964749343. The next prime is 13964749423. The reversal of 13964749387 is 78394746931.

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 13964749387 - 2²³ = 13956360779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13964749307) 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, 5284353 + ... + 5286994.

It is an arithmetic number, because the mean of its divisors is an integer number (3493830514).

Almost surely, 2^13964749387 is an apocalyptic number.

13964749387 is a deficient number, since it is larger than the sum of its proper divisors (10572669).

13964749387 is a wasteful number, since it uses less digits than its factorization.

13964749387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10572668.

The product of its digits is 27433728, while the sum is 61.

The spelling of 13964749387 in words is "thirteen billion, nine hundred sixty-four million, seven hundred forty-nine thousand, three hundred eighty-seven".