27825605205 has 16 divisors (see below), whose sum is σ = 44537788224. Its totient is φ = 14834716160.

The previous prime is 27825605201. The next prime is 27825605237. The reversal of 27825605205 is 50250652872.

It is a happy number.

It is not a de Polignac number, because 27825605205 - 2² = 27825605201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27825605201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309231 + ... + 388940.

It is an arithmetic number, because the mean of its divisors is an integer number (2783611764).

Almost surely, 2^27825605205 is an apocalyptic number.

It is an amenable number.

27825605205 is a deficient number, since it is larger than the sum of its proper divisors (16712183019).

27825605205 is a wasteful number, since it uses less digits than its factorization.

27825605205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700836.

The product of its (nonzero) digits is 336000, while the sum is 42.

The spelling of 27825605205 in words is "twenty-seven billion, eight hundred twenty-five million, six hundred five thousand, two hundred five".