13526394786 has 12 divisors (see below), whose sum is σ = 29307188742. Its totient is φ = 4508798256.

The previous prime is 13526394779. The next prime is 13526394787. The reversal of 13526394786 is 68749362531.

13526394786 is a `hidden beast` number, since 1 + 3 + 526 + 39 + 4 + 7 + 86 = 666.

13526394786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9231558561 + 4294836225 = 96081^2 + 65535^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13526394787) 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 5 ways as a sum of consecutive naturals, for example, 375733171 + ... + 375733206.

Almost surely, 2^13526394786 is an apocalyptic number.

13526394786 is an abundant number, since it is smaller than the sum of its proper divisors (15780793956).

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

13526394786 is a wasteful number, since it uses less digits than its factorization.

13526394786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751466385 (or 751466382 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 13526394786 in words is "thirteen billion, five hundred twenty-six million, three hundred ninety-four thousand, seven hundred eighty-six".