13240936688 has 80 divisors (see below), whose sum is σ = 29643816960. Its totient is φ = 5612156928.

The previous prime is 13240936567. The next prime is 13240936711. The reversal of 13240936688 is 88663904231.

It is a happy number.

It is a congruent number.

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, 5105120 + ... + 5107712.

It is an arithmetic number, because the mean of its divisors is an integer number (370547712).

Almost surely, 2^13240936688 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 13240936688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14821908480).

13240936688 is an abundant number, since it is smaller than the sum of its proper divisors (16402880272).

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

13240936688 is a wasteful number, since it uses less digits than its factorization.

13240936688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3094 (or 3088 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 50.

The spelling of 13240936688 in words is "thirteen billion, two hundred forty million, nine hundred thirty-six thousand, six hundred eighty-eight".