11727358457 has 4 divisors (see below), whose sum is σ = 11727811236. Its totient is φ = 11726905680.

The previous prime is 11727358399. The next prime is 11727358493. The reversal of 11727358457 is 75485372711.

11727358457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9459313081 + 2268045376 = 97259^2 + 47624^2 .

It is a cyclic number.

It is not a de Polignac number, because 11727358457 - 2²⁸ = 11458923001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11727358057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185018 + ... + 240179.

It is an arithmetic number, because the mean of its divisors is an integer number (2931952809).

Almost surely, 2^11727358457 is an apocalyptic number.

It is an amenable number.

11727358457 is a deficient number, since it is larger than the sum of its proper divisors (452779).

11727358457 is an equidigital number, since it uses as much as digits as its factorization.

11727358457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452778.

The product of its digits is 1646400, while the sum is 50.

The spelling of 11727358457 in words is "eleven billion, seven hundred twenty-seven million, three hundred fifty-eight thousand, four hundred fifty-seven".