13081442526 has 12 divisors (see below), whose sum is σ = 28343125512. Its totient is φ = 4360480836.

The previous prime is 13081442519. The next prime is 13081442531. The reversal of 13081442526 is 62524418031.

It is a happy number.

13081442526 is a `hidden beast` number, since 13 + 0 + 81 + 4 + 42 + 526 = 666.

It is a super-2 number, since 2×13081442526² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 363373386 + ... + 363373421.

It is an arithmetic number, because the mean of its divisors is an integer number (2361927126).

Almost surely, 2^13081442526 is an apocalyptic number.

13081442526 is an abundant number, since it is smaller than the sum of its proper divisors (15261682986).

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

13081442526 is a wasteful number, since it uses less digits than its factorization.

13081442526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726746815 (or 726746812 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 13081442526 in words is "thirteen billion, eighty-one million, four hundred forty-two thousand, five hundred twenty-six".