13281347877265 has 32 divisors (see below), whose sum is σ = 17420422642560. Its totient is φ = 9661013074944.

The previous prime is 13281347877253. The next prime is 13281347877269. The reversal of 13281347877265 is 56277874318231.

It is a cyclic number.

It is not a de Polignac number, because 13281347877265 - 2¹⁷ = 13281347746193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13281347877197 and 13281347877206.

It is not an unprimeable number, because it can be changed into a prime (13281347877269) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176161257 + ... + 176236633.

It is an arithmetic number, because the mean of its divisors is an integer number (544388207580).

Almost surely, 2^{13281347877265} is an apocalyptic number.

It is an amenable number.

13281347877265 is a deficient number, since it is larger than the sum of its proper divisors (4139074765295).

13281347877265 is a wasteful number, since it uses less digits than its factorization.

13281347877265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115921.

The product of its digits is 94832640, while the sum is 64.

The spelling of 13281347877265 in words is "thirteen trillion, two hundred eighty-one billion, three hundred forty-seven million, eight hundred seventy-seven thousand, two hundred sixty-five".