13264255187647 has 4 divisors (see below), whose sum is σ = 13840961934960. Its totient is φ = 12687548440336.

The previous prime is 13264255187639. The next prime is 13264255187663. The reversal of 13264255187647 is 74678155246231.

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

It is a cyclic number.

It is not a de Polignac number, because 13264255187647 - 2³ = 13264255187639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13264255181647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288353373622 + ... + 288353373667.

It is an arithmetic number, because the mean of its divisors is an integer number (3460240483740).

Almost surely, 2^{13264255187647} is an apocalyptic number.

13264255187647 is a deficient number, since it is larger than the sum of its proper divisors (576706747313).

13264255187647 is an equidigital number, since it uses as much as digits as its factorization.

13264255187647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576706747312.

The product of its digits is 67737600, while the sum is 61.

The spelling of 13264255187647 in words is "thirteen trillion, two hundred sixty-four billion, two hundred fifty-five million, one hundred eighty-seven thousand, six hundred forty-seven".