27982614178 has 4 divisors (see below), whose sum is σ = 41973921270. Its totient is φ = 13991307088.

The previous prime is 27982614109. The next prime is 27982614203. The reversal of 27982614178 is 87141628972.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19000692649 + 8981921529 = 137843^2 + 94773^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6995653543 + ... + 6995653546.

Almost surely, 2^27982614178 is an apocalyptic number.

27982614178 is a deficient number, since it is larger than the sum of its proper divisors (13991307092).

27982614178 is a wasteful number, since it uses less digits than its factorization.

27982614178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13991307091.

The product of its digits is 2709504, while the sum is 55.

The spelling of 27982614178 in words is "twenty-seven billion, nine hundred eighty-two million, six hundred fourteen thousand, one hundred seventy-eight".