27312194788 has 24 divisors (see below), whose sum is σ = 47942900600. Its totient is φ = 13614289920.

The previous prime is 27312194779. The next prime is 27312194827. The reversal of 27312194788 is 88749121372.

It can be written as a sum of positive squares in 4 ways, for example, as 3687889984 + 23624304804 = 60728^2 + 153702^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1771738 + ... + 1787086.

Almost surely, 2^27312194788 is an apocalyptic number.

It is an amenable number.

27312194788 is a deficient number, since it is larger than the sum of its proper divisors (20630705812).

27312194788 is a wasteful number, since it uses less digits than its factorization.

27312194788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16687 (or 16685 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 52.

The spelling of 27312194788 in words is "twenty-seven billion, three hundred twelve million, one hundred ninety-four thousand, seven hundred eighty-eight".