27150057805 has 16 divisors (see below), whose sum is σ = 35144658864. Its totient is φ = 20015884800.

The previous prime is 27150057787. The next prime is 27150057829. The reversal of 27150057805 is 50875005172.

It can be written as a sum of positive squares in 8 ways, for example, as 228795876 + 26921261929 = 15126^2 + 164077^2 .

It is not a de Polignac number, because 27150057805 - 2⁷ = 27150057677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 308434 + ... + 386563.

It is an arithmetic number, because the mean of its divisors is an integer number (2196541179).

Almost surely, 2^27150057805 is an apocalyptic number.

It is an amenable number.

27150057805 is a deficient number, since it is larger than the sum of its proper divisors (7994601059).

27150057805 is a wasteful number, since it uses less digits than its factorization.

27150057805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695616.

The product of its (nonzero) digits is 98000, while the sum is 40.

The spelling of 27150057805 in words is "twenty-seven billion, one hundred fifty million, fifty-seven thousand, eight hundred five".