13260635511863 has 4 divisors (see below), whose sum is σ = 13837184881968. Its totient is φ = 12684086141760.

The previous prime is 13260635511797. The next prime is 13260635511911. The reversal of 13260635511863 is 36811553606231.

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 13260635511863 - 2²⁴ = 13260618734647 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 (13260635501863) 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, 288274685018 + ... + 288274685063.

It is an arithmetic number, because the mean of its divisors is an integer number (3459296220492).

Almost surely, 2^{13260635511863} is an apocalyptic number.

13260635511863 is a deficient number, since it is larger than the sum of its proper divisors (576549370105).

13260635511863 is an equidigital number, since it uses as much as digits as its factorization.

13260635511863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576549370104.

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 13260635511863 in words is "thirteen trillion, two hundred sixty billion, six hundred thirty-five million, five hundred eleven thousand, eight hundred sixty-three".