13264645523 has 4 divisors (see below), whose sum is σ = 13288895880. Its totient is φ = 13240395168.

The previous prime is 13264645517. The next prime is 13264645561. The reversal of 13264645523 is 32554646231.

13264645523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32554646231 = 8191 ⋅3974441.

It is a cyclic number.

It is not a de Polignac number, because 13264645523 - 2⁴ = 13264645507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13264615523) 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 3 ways as a sum of consecutive naturals, for example, 12124358 + ... + 12125451.

It is an arithmetic number, because the mean of its divisors is an integer number (3322223970).

Almost surely, 2^13264645523 is an apocalyptic number.

13264645523 is a deficient number, since it is larger than the sum of its proper divisors (24250357).

13264645523 is an equidigital number, since it uses as much as digits as its factorization.

13264645523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24250356.

The product of its digits is 518400, while the sum is 41.

The spelling of 13264645523 in words is "thirteen billion, two hundred sixty-four million, six hundred forty-five thousand, five hundred twenty-three".