27315107887 has 8 divisors (see below), whose sum is σ = 27532117296. Its totient is φ = 27098701632.

The previous prime is 27315107873. The next prime is 27315107891. The reversal of 27315107887 is 78870151372.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27315107887 is a prime.

It is a super-2 number, since 2×27315107887² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27315107887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27315107837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59638 + ... + 241219.

It is an arithmetic number, because the mean of its divisors is an integer number (3441514662).

Almost surely, 2^27315107887 is an apocalyptic number.

27315107887 is a deficient number, since it is larger than the sum of its proper divisors (217009409).

27315107887 is a wasteful number, since it uses less digits than its factorization.

27315107887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301577.

The product of its (nonzero) digits is 658560, while the sum is 49.

The spelling of 27315107887 in words is "twenty-seven billion, three hundred fifteen million, one hundred seven thousand, eight hundred eighty-seven".