27091228042242 has 48 divisors (see below), whose sum is σ = 72243274783680. Its totient is φ = 7144939263456.

The previous prime is 27091228042223. The next prime is 27091228042243. The reversal of 27091228042242 is 24224082219072.

27091228042242 is a `hidden beast` number, since 2 + 7 + 0 + 91 + 2 + 280 + 42 + 242 = 666.

It is not an unprimeable number, because it can be changed into a prime (27091228042243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8269603992 + ... + 8269607267.

It is an arithmetic number, because the mean of its divisors is an integer number (1505068224660).

Almost surely, 2^{27091228042242} is an apocalyptic number.

27091228042242 is an abundant number, since it is smaller than the sum of its proper divisors (45152046741438).

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

27091228042242 is a wasteful number, since it uses less digits than its factorization.

27091228042242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16539211287 (or 16539211284 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 27091228042242 in words is "twenty-seven trillion, ninety-one billion, two hundred twenty-eight million, forty-two thousand, two hundred forty-two".