27771641682 has 8 divisors (see below), whose sum is σ = 55543283376. Its totient is φ = 9257213892.

The previous prime is 27771641603. The next prime is 27771641687. The reversal of 27771641682 is 28614617772.

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

27771641682 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (27771641687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2314303468 + ... + 2314303479.

It is an arithmetic number, because the mean of its divisors is an integer number (6942910422).

Almost surely, 2^27771641682 is an apocalyptic number.

27771641682 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.

27771641682 is a wasteful number, since it uses less digits than its factorization.

27771641682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4628606952.

The product of its digits is 1580544, while the sum is 51.

The spelling of 27771641682 in words is "twenty-seven billion, seven hundred seventy-one million, six hundred forty-one thousand, six hundred eighty-two".