27667427612 has 24 divisors (see below), whose sum is σ = 54641003760. Its totient is φ = 12142444160.

The previous prime is 27667427591. The next prime is 27667427617. The reversal of 27667427612 is 21672476672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27667427617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10840193 + ... + 10842744.

It is an arithmetic number, because the mean of its divisors is an integer number (2276708490).

Almost surely, 2^27667427612 is an apocalyptic number.

27667427612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27667427612 is a deficient number, since it is larger than the sum of its proper divisors (26973576148).

27667427612 is a wasteful number, since it uses less digits than its factorization.

27667427612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21682981 (or 21682979 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 50.

The spelling of 27667427612 in words is "twenty-seven billion, six hundred sixty-seven million, four hundred twenty-seven thousand, six hundred twelve".