13486261265 has 16 divisors (see below), whose sum is σ = 16410827856. Its totient is φ = 10637568000.

The previous prime is 13486261259. The next prime is 13486261267. The reversal of 13486261265 is 56216268431.

It can be written as a sum of positive squares in 8 ways, for example, as 893830609 + 12592430656 = 29897^2 + 112216^2 .

It is not a de Polignac number, because 13486261265 - 2⁴ = 13486261249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13486261267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1660715 + ... + 1668815.

It is an arithmetic number, because the mean of its divisors is an integer number (1025676741).

Almost surely, 2^13486261265 is an apocalyptic number.

It is an amenable number.

13486261265 is a deficient number, since it is larger than the sum of its proper divisors (2924566591).

13486261265 is an equidigital number, since it uses as much as digits as its factorization.

13486261265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12740.

The product of its digits is 414720, while the sum is 44.

The spelling of 13486261265 in words is "thirteen billion, four hundred eighty-six million, two hundred sixty-one thousand, two hundred sixty-five".