27918216274 has 24 divisors (see below), whose sum is σ = 45359032212. Its totient is φ = 12881756160.

The previous prime is 27918216269. The next prime is 27918216281. The reversal of 27918216274 is 47261281972.

It can be written as a sum of positive squares in 6 ways, for example, as 8320176225 + 19598040049 = 91215^2 + 139993^2 .

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, 1505362 + ... + 1523794.

Almost surely, 2^27918216274 is an apocalyptic number.

27918216274 is a deficient number, since it is larger than the sum of its proper divisors (17440815938).

27918216274 is a wasteful number, since it uses less digits than its factorization.

27918216274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22942 (or 22929 counting only the distinct ones).

The product of its digits is 677376, while the sum is 49.

The spelling of 27918216274 in words is "twenty-seven billion, nine hundred eighteen million, two hundred sixteen thousand, two hundred seventy-four".