27243041854866 has 32 divisors (see below), whose sum is σ = 55299777131520. Its totient is φ = 8945400677136.

The previous prime is 27243041854843. The next prime is 27243041854879. The reversal of 27243041854866 is 66845814034272.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66627475 + ... + 67035113.

It is an arithmetic number, because the mean of its divisors is an integer number (1728118035360).

Almost surely, 2^{27243041854866} is an apocalyptic number.

27243041854866 is an abundant number, since it is smaller than the sum of its proper divisors (28056735276654).

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

27243041854866 is a wasteful number, since it uses less digits than its factorization.

27243041854866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573958.

The product of its (nonzero) digits is 61931520, while the sum is 60.

The spelling of 27243041854866 in words is "twenty-seven trillion, two hundred forty-three billion, forty-one million, eight hundred fifty-four thousand, eight hundred sixty-six".