13361873457 has 4 divisors (see below), whose sum is σ = 17815831280. Its totient is φ = 8907915636.

The previous prime is 13361873423. The next prime is 13361873479. The reversal of 13361873457 is 75437816331.

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.

It is not a de Polignac number, because 13361873457 - 2²³ = 13353484849 is a prime.

It is a super-2 number, since 2×13361873457² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13361873417) 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, 2226978907 + ... + 2226978912.

It is an arithmetic number, because the mean of its divisors is an integer number (4453957820).

Almost surely, 2^13361873457 is an apocalyptic number.

It is an amenable number.

13361873457 is a deficient number, since it is larger than the sum of its proper divisors (4453957823).

13361873457 is an equidigital number, since it uses as much as digits as its factorization.

13361873457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4453957822.

The product of its digits is 1270080, while the sum is 48.

The spelling of 13361873457 in words is "thirteen billion, three hundred sixty-one million, eight hundred seventy-three thousand, four hundred fifty-seven".