13261716280 has 64 divisors (see below), whose sum is σ = 31155632640. Its totient is φ = 5070882432.

The previous prime is 13261716241. The next prime is 13261716283. The reversal of 13261716280 is 8261716231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13261716283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1916587 + ... + 1923493.

It is an arithmetic number, because the mean of its divisors is an integer number (486806760).

Almost surely, 2^13261716280 is an apocalyptic number.

13261716280 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 13261716280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15577816320).

13261716280 is an abundant number, since it is smaller than the sum of its proper divisors (17893916360).

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

13261716280 is a wasteful number, since it uses less digits than its factorization.

13261716280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9028 (or 9024 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 13261716280 in words is "thirteen billion, two hundred sixty-one million, seven hundred sixteen thousand, two hundred eighty".