13731760257 has 4 divisors (see below), whose sum is σ = 18309013680. Its totient is φ = 9154506836.

The previous prime is 13731760253. The next prime is 13731760267. The reversal of 13731760257 is 75206713731.

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 a cyclic number.

It is not a de Polignac number, because 13731760257 - 2² = 13731760253 is a prime.

It is a super-2 number, since 2×13731760257² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13731760253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2288626707 + ... + 2288626712.

It is an arithmetic number, because the mean of its divisors is an integer number (4577253420).

Almost surely, 2^13731760257 is an apocalyptic number.

It is an amenable number.

13731760257 is a deficient number, since it is larger than the sum of its proper divisors (4577253423).

13731760257 is an equidigital number, since it uses as much as digits as its factorization.

13731760257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4577253422.

The product of its (nonzero) digits is 185220, while the sum is 42.

The spelling of 13731760257 in words is "thirteen billion, seven hundred thirty-one million, seven hundred sixty thousand, two hundred fifty-seven".