27208855323018 has 64 divisors (see below), whose sum is σ = 64976371067520. Its totient is φ = 8408706806016.

The previous prime is 27208855323011. The next prime is 27208855323037. The reversal of 27208855323018 is 81032355880272.

27208855323018 is a `hidden beast` number, since 2 + 7 + 2 + 0 + 88 + 553 + 2 + 3 + 0 + 1 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (27208855323011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221127121 + ... + 221250132.

It is an arithmetic number, because the mean of its divisors is an integer number (1015255797930).

Almost surely, 2^{27208855323018} is an apocalyptic number.

27208855323018 is an abundant number, since it is smaller than the sum of its proper divisors (37767515744502).

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

27208855323018 is a wasteful number, since it uses less digits than its factorization.

27208855323018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442377348 (or 442377342 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 27208855323018 in words is "twenty-seven trillion, two hundred eight billion, eight hundred fifty-five million, three hundred twenty-three thousand, eighteen".