13268026536 has 64 divisors (see below), whose sum is σ = 34560276480. Its totient is φ = 4239983040.

The previous prime is 13268026517. The next prime is 13268026543. The reversal of 13268026536 is 63562086231.

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, 3726 + ... + 162941.

It is an arithmetic number, because the mean of its divisors is an integer number (540004320).

Almost surely, 2^13268026536 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 13268026536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17280138240).

13268026536 is an abundant number, since it is smaller than the sum of its proper divisors (21292249944).

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

13268026536 is a wasteful number, since it uses less digits than its factorization.

13268026536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166814 (or 166810 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 13268026536 in words is "thirteen billion, two hundred sixty-eight million, twenty-six thousand, five hundred thirty-six".