13447338512 has 20 divisors (see below), whose sum is σ = 26952640620. Its totient is φ = 6491818368.

The previous prime is 13447338511. The next prime is 13447338517. The reversal of 13447338512 is 21583374431.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6348264976 + 7099073536 = 79676^2 + 84256^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13447338512.

It is not an unprimeable number, because it can be changed into a prime (13447338511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14490203 + ... + 14491130.

It is an arithmetic number, because the mean of its divisors is an integer number (1347632031).

Almost surely, 2^13447338512 is an apocalyptic number.

It is an amenable number.

13447338512 is an abundant number, since it is smaller than the sum of its proper divisors (13505302108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13447338512 is a wasteful number, since it uses less digits than its factorization.

13447338512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28981370 (or 28981364 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The spelling of 13447338512 in words is "thirteen billion, four hundred forty-seven million, three hundred thirty-eight thousand, five hundred twelve".