27945382278 has 16 divisors (see below), whose sum is σ = 60971743296. Its totient is φ = 8468297640.

The previous prime is 27945382207. The next prime is 27945382291. The reversal of 27945382278 is 87228354972.

27945382278 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211707376 + ... + 211707507.

It is an arithmetic number, because the mean of its divisors is an integer number (3810733956).

Almost surely, 2^27945382278 is an apocalyptic number.

27945382278 is an abundant number, since it is smaller than the sum of its proper divisors (33026361018).

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

27945382278 is a wasteful number, since it uses less digits than its factorization.

27945382278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423414899.

The product of its digits is 13547520, while the sum is 57.

The spelling of 27945382278 in words is "twenty-seven billion, nine hundred forty-five million, three hundred eighty-two thousand, two hundred seventy-eight".