27888007679 has 24 divisors (see below), whose sum is σ = 33443051040. Its totient is φ = 22778889408.

The previous prime is 27888007649. The next prime is 27888007703. The reversal of 27888007679 is 97670088872.

It is not a de Polignac number, because 27888007679 - 2¹⁶ = 27887942143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27888007649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 982109 + ... + 1010105.

It is an arithmetic number, because the mean of its divisors is an integer number (1393460460).

Almost surely, 2^27888007679 is an apocalyptic number.

27888007679 is a deficient number, since it is larger than the sum of its proper divisors (5555043361).

27888007679 is a wasteful number, since it uses less digits than its factorization.

27888007679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28319 (or 28296 counting only the distinct ones).

The product of its (nonzero) digits is 18966528, while the sum is 62.

The spelling of 27888007679 in words is "twenty-seven billion, eight hundred eighty-eight million, seven thousand, six hundred seventy-nine".