27888479955 has 64 divisors (see below), whose sum is σ = 57731512320. Its totient is φ = 12508449408.

The previous prime is 27888479933. The next prime is 27888479963. The reversal of 27888479955 is 55997488872.

27888479955 is a `hidden beast` number, since 2 + 78 + 88 + 479 + 9 + 5 + 5 = 666.

It is not a de Polignac number, because 27888479955 - 2¹⁰ = 27888478931 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 228327 + ... + 328496.

It is an arithmetic number, because the mean of its divisors is an integer number (902054880).

Almost surely, 2^27888479955 is an apocalyptic number.

27888479955 is an abundant number, since it is smaller than the sum of its proper divisors (29843032365).

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

27888479955 is a wasteful number, since it uses less digits than its factorization.

27888479955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556897 (or 556891 counting only the distinct ones).

The product of its digits is 406425600, while the sum is 72.

The spelling of 27888479955 in words is "twenty-seven billion, eight hundred eighty-eight million, four hundred seventy-nine thousand, nine hundred fifty-five".