27067920868 has 6 divisors (see below), whose sum is σ = 47368861526. Its totient is φ = 13533960432.

The previous prime is 27067920857. The next prime is 27067920881. The reversal of 27067920868 is 86802976072.

It can be written as a sum of positive squares in only one way, i.e., 25185055204 + 1882865664 = 158698^2 + 43392^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3383490105 + ... + 3383490112.

Almost surely, 2^27067920868 is an apocalyptic number.

It is an amenable number.

27067920868 is a deficient number, since it is larger than the sum of its proper divisors (20300940658).

27067920868 is a wasteful number, since it uses less digits than its factorization.

27067920868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6766980221 (or 6766980219 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 27067920868 in words is "twenty-seven billion, sixty-seven million, nine hundred twenty thousand, eight hundred sixty-eight".