13522706686 has 4 divisors (see below), whose sum is σ = 20284060032. Its totient is φ = 6761353342.

The previous prime is 13522706663. The next prime is 13522706689. The reversal of 13522706686 is 68660722531.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×13522706686² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13522706689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3380676670 + ... + 3380676673.

It is an arithmetic number, because the mean of its divisors is an integer number (5071015008).

Almost surely, 2^13522706686 is an apocalyptic number.

13522706686 is a deficient number, since it is larger than the sum of its proper divisors (6761353346).

13522706686 is an equidigital number, since it uses as much as digits as its factorization.

13522706686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6761353345.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 13522706686 in words is "thirteen billion, five hundred twenty-two million, seven hundred six thousand, six hundred eighty-six".