13247727064 has 64 divisors (see below), whose sum is σ = 29291220000. Its totient is φ = 5537694720.

The previous prime is 13247727019. The next prime is 13247727079. The reversal of 13247727064 is 46072774231.

It is a self number, because there is not a number n which added to its sum of digits gives 13247727064.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286212 + ... + 329260.

Almost surely, 2^13247727064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13247727064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14645610000).

13247727064 is an abundant number, since it is smaller than the sum of its proper divisors (16043492936).

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

13247727064 is a wasteful number, since it uses less digits than its factorization.

13247727064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43348 (or 43344 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 43.

The spelling of 13247727064 in words is "thirteen billion, two hundred forty-seven million, seven hundred twenty-seven thousand, sixty-four".