13208818253 has 4 divisors (see below), whose sum is σ = 13985807580. Its totient is φ = 12431828928.

The previous prime is 13208818213. The next prime is 13208818313. The reversal of 13208818253 is 35281880231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35281880231 = 13 ⋅2713990787.

It can be written as a sum of positive squares in 2 ways, for example, as 4604029609 + 8604788644 = 67853^2 + 92762^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13208818253 is a prime.

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 13208818253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13208818213) 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, 388494638 + ... + 388494671.

It is an arithmetic number, because the mean of its divisors is an integer number (3496451895).

Almost surely, 2^13208818253 is an apocalyptic number.

It is an amenable number.

13208818253 is a deficient number, since it is larger than the sum of its proper divisors (776989327).

13208818253 is an equidigital number, since it uses as much as digits as its factorization.

13208818253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776989326.

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 13208818253 in words is "thirteen billion, two hundred eight million, eight hundred eighteen thousand, two hundred fifty-three".