27557879279988 has 96 divisors (see below), whose sum is σ = 65312009747712. Its totient is φ = 9042759936000.

The previous prime is 27557879279947. The next prime is 27557879280011. The reversal of 27557879279988 is 88997297875572.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1830715870 + ... + 1830730922.

It is an arithmetic number, because the mean of its divisors is an integer number (680333434872).

Almost surely, 2^{27557879279988} is an apocalyptic number.

It is an amenable number.

27557879279988 is an abundant number, since it is smaller than the sum of its proper divisors (37754130467724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27557879279988 is a wasteful number, since it uses less digits than its factorization.

27557879279988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24265 (or 24263 counting only the distinct ones).

The product of its digits is 89616844800, while the sum is 93.

The spelling of 27557879279988 in words is "twenty-seven trillion, five hundred fifty-seven billion, eight hundred seventy-nine million, two hundred seventy-nine thousand, nine hundred eighty-eight".