27391212102 has 8 divisors (see below), whose sum is σ = 54782424216. Its totient is φ = 9130404032.

The previous prime is 27391212077. The next prime is 27391212139. The reversal of 27391212102 is 20121219372.

It is a sphenic number, since it is the product of 3 distinct primes.

27391212102 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 27391212102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2282601003 + ... + 2282601014.

It is an arithmetic number, because the mean of its divisors is an integer number (6847803027).

Almost surely, 2^27391212102 is an apocalyptic number.

27391212102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27391212102 is a wasteful number, since it uses less digits than its factorization.

27391212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4565202022.

The product of its (nonzero) digits is 3024, while the sum is 30.

The spelling of 27391212102 in words is "twenty-seven billion, three hundred ninety-one million, two hundred twelve thousand, one hundred two".