13426657253 has 4 divisors (see below), whose sum is σ = 13447539168. Its totient is φ = 13405775340.

The previous prime is 13426657243. The next prime is 13426657289. The reversal of 13426657253 is 35275662431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35275662431 = 97 ⋅363666623.

It is a cyclic number.

It is not a de Polignac number, because 13426657253 - 2¹⁸ = 13426395109 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 (13426657243) 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, 10439993 + ... + 10441278.

It is an arithmetic number, because the mean of its divisors is an integer number (3361884792).

Almost surely, 2^13426657253 is an apocalyptic number.

It is an amenable number.

13426657253 is a deficient number, since it is larger than the sum of its proper divisors (20881915).

13426657253 is an equidigital number, since it uses as much as digits as its factorization.

13426657253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20881914.

The product of its digits is 907200, while the sum is 44.

The spelling of 13426657253 in words is "thirteen billion, four hundred twenty-six million, six hundred fifty-seven thousand, two hundred fifty-three".