13608882781 has 8 divisors (see below), whose sum is σ = 14841236480. Its totient is φ = 12403031472.

The previous prime is 13608882767. The next prime is 13608882803. The reversal of 13608882781 is 18728880631.

It is a happy number.

13608882781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13608882781 - 2²¹ = 13606785629 is a prime.

It is a super-2 number, since 2×13608882781² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13608882181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6624525 + ... + 6626578.

It is an arithmetic number, because the mean of its divisors is an integer number (1855154560).

Almost surely, 2^13608882781 is an apocalyptic number.

It is an amenable number.

13608882781 is a deficient number, since it is larger than the sum of its proper divisors (1232353699).

13608882781 is a wasteful number, since it uses less digits than its factorization.

13608882781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13251195.

The product of its (nonzero) digits is 1032192, while the sum is 52.

The spelling of 13608882781 in words is "thirteen billion, six hundred eight million, eight hundred eighty-two thousand, seven hundred eighty-one".