27776649601 has 8 divisors (see below), whose sum is σ = 27832440320. Its totient is φ = 27720893088.

The previous prime is 27776649539. The next prime is 27776649611. The reversal of 27776649601 is 10694667772.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27776649601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27776649611) 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, 2135620 + ... + 2148586.

It is an arithmetic number, because the mean of its divisors is an integer number (3479055040).

Almost surely, 2^27776649601 is an apocalyptic number.

It is an amenable number.

27776649601 is a deficient number, since it is larger than the sum of its proper divisors (55790719).

27776649601 is a wasteful number, since it uses less digits than its factorization.

27776649601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17103.

The product of its (nonzero) digits is 5334336, while the sum is 55.

The spelling of 27776649601 in words is "twenty-seven billion, seven hundred seventy-six million, six hundred forty-nine thousand, six hundred one".