27774503856 has 160 divisors (see below), whose sum is σ = 87122995200. Its totient is φ = 8401777920.

The previous prime is 27774503851. The next prime is 27774503863. The reversal of 27774503856 is 65830547772.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (27774503851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2879650 + ... + 2889278.

It is an arithmetic number, because the mean of its divisors is an integer number (544518720).

Almost surely, 2^27774503856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27774503856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43561497600).

27774503856 is an abundant number, since it is smaller than the sum of its proper divisors (59348491344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27774503856 is a wasteful number, since it uses less digits than its factorization.

27774503856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10264 (or 10252 counting only the distinct ones).

The product of its (nonzero) digits is 9878400, while the sum is 54.

The spelling of 27774503856 in words is "twenty-seven billion, seven hundred seventy-four million, five hundred three thousand, eight hundred fifty-six".