13263243560 has 96 divisors (see below), whose sum is σ = 34758438120. Its totient is φ = 4541644800.

The previous prime is 13263243557. The next prime is 13263243571. The reversal of 13263243560 is 6534236231.

It can be written as a sum of positive squares in 4 ways, for example, as 9794269156 + 3468974404 = 98966^2 + 58898^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 13263243560.

It is an unprimeable number.

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, 1722920 + ... + 1730600.

Almost surely, 2^13263243560 is an apocalyptic number.

13263243560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13263243560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17379219060).

13263243560 is an abundant number, since it is smaller than the sum of its proper divisors (21495194560).

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

13263243560 is a wasteful number, since it uses less digits than its factorization.

13263243560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8587 (or 8576 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 35.

Adding to 13263243560 its reverse (6534236231), we get a palindrome (19797479791).

The spelling of 13263243560 in words is "thirteen billion, two hundred sixty-three million, two hundred forty-three thousand, five hundred sixty".