27275631894 has 24 divisors (see below), whose sum is σ = 67539660240. Its totient is φ = 7793037648.

The previous prime is 27275631881. The next prime is 27275631931. The reversal of 27275631894 is 49813657272.

It is a happy number.

27275631894 is a `hidden beast` number, since 2 + 72 + 7 + 563 + 1 + 8 + 9 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 27275631894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108236509 + ... + 108236760.

It is an arithmetic number, because the mean of its divisors is an integer number (2814152510).

Almost surely, 2^27275631894 is an apocalyptic number.

27275631894 is an abundant number, since it is smaller than the sum of its proper divisors (40264028346).

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

27275631894 is a wasteful number, since it uses less digits than its factorization.

27275631894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216473284 (or 216473281 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The spelling of 27275631894 in words is "twenty-seven billion, two hundred seventy-five million, six hundred thirty-one thousand, eight hundred ninety-four".