13287266347 has 4 divisors (see below), whose sum is σ = 13611346056. Its totient is φ = 12963186640.

The previous prime is 13287266309. The next prime is 13287266353. The reversal of 13287266347 is 74366278231.

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 13287266347 - 2¹⁵ = 13287233579 is a prime.

It is a super-2 number, since 2×13287266347² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13287266347.

It is not an unprimeable number, because it can be changed into a prime (13287266357) 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, 162039793 + ... + 162039874.

It is an arithmetic number, because the mean of its divisors is an integer number (3402836514).

Almost surely, 2^13287266347 is an apocalyptic number.

13287266347 is a deficient number, since it is larger than the sum of its proper divisors (324079709).

13287266347 is an equidigital number, since it uses as much as digits as its factorization.

13287266347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324079708.

The product of its digits is 2032128, while the sum is 49.

The spelling of 13287266347 in words is "thirteen billion, two hundred eighty-seven million, two hundred sixty-six thousand, three hundred forty-seven".