13948447071 has 16 divisors (see below), whose sum is σ = 20310635520. Its totient is φ = 8462761440.

The previous prime is 13948447069. The next prime is 13948447099. The reversal of 13948447071 is 17074484931.

It is a happy number.

It is not a de Polignac number, because 13948447071 - 2¹ = 13948447069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13948447071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13948447571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2515911 + ... + 2521448.

It is an arithmetic number, because the mean of its divisors is an integer number (1269414720).

Almost surely, 2^13948447071 is an apocalyptic number.

13948447071 is a deficient number, since it is larger than the sum of its proper divisors (6362188449).

13948447071 is a wasteful number, since it uses less digits than its factorization.

13948447071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5037446.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 13948447071 in words is "thirteen billion, nine hundred forty-eight million, four hundred forty-seven thousand, seventy-one".