27508316117257 has 8 divisors (see below), whose sum is σ = 28490083993800. Its totient is φ = 26528761924224.

The previous prime is 27508316117251. The next prime is 27508316117311. The reversal of 27508316117257 is 75271161380572.

It can be written as a sum of positive squares in 4 ways, for example, as 13164553633401 + 14343762483856 = 3628299^2 + 3787316^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27508316117257 - 2¹¹ = 27508316115209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27508316117198 and 27508316117207.

It is not an unprimeable number, because it can be changed into a prime (27508316117251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553395582 + ... + 553445287.

It is an arithmetic number, because the mean of its divisors is an integer number (3561260499225).

Almost surely, 2^{27508316117257} is an apocalyptic number.

It is an amenable number.

27508316117257 is a deficient number, since it is larger than the sum of its proper divisors (981767876543).

27508316117257 is a wasteful number, since it uses less digits than its factorization.

27508316117257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106841755.

The product of its (nonzero) digits is 4939200, while the sum is 55.

The spelling of 27508316117257 in words is "twenty-seven trillion, five hundred eight billion, three hundred sixteen million, one hundred seventeen thousand, two hundred fifty-seven".