2772478556 has 36 divisors (see below), whose sum is σ = 5151747888. Its totient is φ = 1305301824.

The previous prime is 2772478531. The next prime is 2772478603. The reversal of 2772478556 is 6558742772.

It is a junction number, because it is equal to n+sod(n) for n = 2772478498 and 2772478507.

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 11 ways as a sum of consecutive naturals, for example, 235400 + ... + 246896.

It is an arithmetic number, because the mean of its divisors is an integer number (143104108).

Almost surely, 2^2772478556 is an apocalyptic number.

It is an amenable number.

2772478556 is a deficient number, since it is larger than the sum of its proper divisors (2379269332).

2772478556 is a wasteful number, since it uses less digits than its factorization.

2772478556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11706 (or 11685 counting only the distinct ones).

The product of its digits is 6585600, while the sum is 53.

The square root of 2772478556 is about 52654.3308380232. The cubic root of 2772478556 is about 1404.8266324418.

The spelling of 2772478556 in words is "two billion, seven hundred seventy-two million, four hundred seventy-eight thousand, five hundred fifty-six".