27206634172 has 12 divisors (see below), whose sum is σ = 47631131856. Its totient is φ = 13597739360.

The previous prime is 27206634157. The next prime is 27206634181. The reversal of 27206634172 is 27143660272.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1383448 + ... + 1402975.

It is an arithmetic number, because the mean of its divisors is an integer number (3969260988).

Almost surely, 2^27206634172 is an apocalyptic number.

It is an amenable number.

27206634172 is a deficient number, since it is larger than the sum of its proper divisors (20424497684).

27206634172 is a wasteful number, since it uses less digits than its factorization.

27206634172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788868 (or 2788866 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 27206634172 in words is "twenty-seven billion, two hundred six million, six hundred thirty-four thousand, one hundred seventy-two".