27773518005 has 32 divisors (see below), whose sum is σ = 50425689600. Its totient is φ = 14497379136.

The previous prime is 27773517971. The next prime is 27773518009. The reversal of 27773518005 is 50081537772.

It is not a de Polignac number, because 27773518005 - 2⁸ = 27773517749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27773518009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2182270 + ... + 2194959.

It is an arithmetic number, because the mean of its divisors is an integer number (1575802800).

Almost surely, 2^27773518005 is an apocalyptic number.

It is an amenable number.

27773518005 is a deficient number, since it is larger than the sum of its proper divisors (22652171595).

27773518005 is a wasteful number, since it uses less digits than its factorization.

27773518005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377290 (or 4377284 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 45.

The spelling of 27773518005 in words is "twenty-seven billion, seven hundred seventy-three million, five hundred eighteen thousand, five".