27676753921 has 16 divisors (see below), whose sum is σ = 30410524800. Its totient is φ = 25071475968.

The previous prime is 27676753891. The next prime is 27676753931. The reversal of 27676753921 is 12935767672.

It is a cyclic number.

It is not a de Polignac number, because 27676753921 - 2¹¹ = 27676751873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27676753931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1506825 + ... + 1525081.

It is an arithmetic number, because the mean of its divisors is an integer number (1900657800).

Almost surely, 2^27676753921 is an apocalyptic number.

It is an amenable number.

27676753921 is a deficient number, since it is larger than the sum of its proper divisors (2733770879).

27676753921 is a wasteful number, since it uses less digits than its factorization.

27676753921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21768.

The product of its digits is 6667920, while the sum is 55.

The spelling of 27676753921 in words is "twenty-seven billion, six hundred seventy-six million, seven hundred fifty-three thousand, nine hundred twenty-one".