13247218260 has 72 divisors (see below), whose sum is σ = 40538894760. Its totient is φ = 3501324288.

The previous prime is 13247218223. The next prime is 13247218267. The reversal of 13247218260 is 6281274231.

It is a happy number.

13247218260 is a `hidden beast` number, since 1 + 3 + 2 + 472 + 182 + 6 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 497646864 + 12749571396 = 22308^2 + 112914^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13247218267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 305305 + ... + 345984.

It is an arithmetic number, because the mean of its divisors is an integer number (563040205).

Almost surely, 2^13247218260 is an apocalyptic number.

13247218260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13247218260 is an abundant number, since it is smaller than the sum of its proper divisors (27291676500).

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

13247218260 is a wasteful number, since it uses less digits than its factorization.

13247218260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651417 (or 651412 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 13247218260 in words is "thirteen billion, two hundred forty-seven million, two hundred eighteen thousand, two hundred sixty".