27768701634 has 8 divisors (see below), whose sum is σ = 55537403280. Its totient is φ = 9256233876.

The previous prime is 27768701617. The next prime is 27768701677. The reversal of 27768701634 is 43610786772.

It is a happy number.

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

27768701634 is an admirable number.

It is a super-3 number, since 3×27768701634³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 2314058464 + ... + 2314058475.

It is an arithmetic number, because the mean of its divisors is an integer number (6942175410).

Almost surely, 2^27768701634 is an apocalyptic number.

27768701634 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.

27768701634 is a wasteful number, since it uses less digits than its factorization.

27768701634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4628116944.

The product of its (nonzero) digits is 2370816, while the sum is 51.

The spelling of 27768701634 in words is "twenty-seven billion, seven hundred sixty-eight million, seven hundred one thousand, six hundred thirty-four".