27777485673 has 24 divisors (see below), whose sum is σ = 46119972288. Its totient is φ = 15781092192.

The previous prime is 27777485663. The next prime is 27777485693. The reversal of 27777485673 is 37658477772.

27777485673 is a `hidden beast` number, since 27 + 7 + 7 + 7 + 48 + 567 + 3 = 666.

It is not a de Polignac number, because 27777485673 - 2¹² = 27777481577 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 27777485673.

It is not an unprimeable number, because it can be changed into a prime (27777485663) 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, 1263415 + ... + 1285212.

It is an arithmetic number, because the mean of its divisors is an integer number (1921665512).

Almost surely, 2^27777485673 is an apocalyptic number.

It is an amenable number.

27777485673 is a deficient number, since it is larger than the sum of its proper divisors (18342486615).

27777485673 is a wasteful number, since it uses less digits than its factorization.

27777485673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548813 (or 2548810 counting only the distinct ones).

The product of its digits is 96808320, while the sum is 63.

The spelling of 27777485673 in words is "twenty-seven billion, seven hundred seventy-seven million, four hundred eighty-five thousand, six hundred seventy-three".