27808925379 has 16 divisors (see below), whose sum is σ = 38349911040. Its totient is φ = 17905963680.

The previous prime is 27808925357. The next prime is 27808925383. The reversal of 27808925379 is 97352980872.

It is not a de Polignac number, because 27808925379 - 2²¹ = 27806828227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27808925279) 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 15 ways as a sum of consecutive naturals, for example, 246397 + ... + 341070.

It is an arithmetic number, because the mean of its divisors is an integer number (2396869440).

Almost surely, 2^27808925379 is an apocalyptic number.

27808925379 is a deficient number, since it is larger than the sum of its proper divisors (10540985661).

27808925379 is a wasteful number, since it uses less digits than its factorization.

27808925379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588010.

The product of its (nonzero) digits is 15240960, while the sum is 60.

The spelling of 27808925379 in words is "twenty-seven billion, eight hundred eight million, nine hundred twenty-five thousand, three hundred seventy-nine".