13530986826 has 64 divisors (see below), whose sum is σ = 31945506816. Its totient is φ = 3738960000.

The previous prime is 13530986813. The next prime is 13530986827. The reversal of 13530986826 is 62868903531.

It is a happy number.

It is a super-3 number, since 3×13530986826³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13530986827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3905571 + ... + 3909033.

It is an arithmetic number, because the mean of its divisors is an integer number (499148544).

Almost surely, 2^13530986826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13530986826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15972753408).

13530986826 is an abundant number, since it is smaller than the sum of its proper divisors (18414519990).

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

13530986826 is a wasteful number, since it uses less digits than its factorization.

13530986826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6507.

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 13530986826 in words is "thirteen billion, five hundred thirty million, nine hundred eighty-six thousand, eight hundred twenty-six".