13247360646 has 64 divisors (see below), whose sum is σ = 29798254080. Its totient is φ = 3895626240.

The previous prime is 13247360641. The next prime is 13247360681. The reversal of 13247360646 is 64606374231.

13247360646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13247360598 and 13247360607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13247360641) 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 31 ways as a sum of consecutive naturals, for example, 2902206 + ... + 2906766.

It is an arithmetic number, because the mean of its divisors is an integer number (465597720).

Almost surely, 2^13247360646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13247360646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14899127040).

13247360646 is an abundant number, since it is smaller than the sum of its proper divisors (16550893434).

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

13247360646 is a wasteful number, since it uses less digits than its factorization.

13247360646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6221.

The product of its (nonzero) digits is 435456, while the sum is 42.

It can be divided in two parts, 132 and 47360646, that added together give a triangular number (47360778 = T₉₇₃₂).

The spelling of 13247360646 in words is "thirteen billion, two hundred forty-seven million, three hundred sixty thousand, six hundred forty-six".