2771148556 has 48 divisors (see below), whose sum is σ = 5636050560. Its totient is φ = 1178910720.

The previous prime is 2771148551. The next prime is 2771148557. The reversal of 2771148556 is 6558411772.

It is not an unprimeable number, because it can be changed into a prime (2771148551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49420 + ... + 89356.

It is an arithmetic number, because the mean of its divisors is an integer number (117417720).

Almost surely, 2^2771148556 is an apocalyptic number.

It is an amenable number.

2771148556 is an abundant number, since it is smaller than the sum of its proper divisors (2864902004).

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

2771148556 is a wasteful number, since it uses less digits than its factorization.

2771148556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40054 (or 40052 counting only the distinct ones).

The product of its digits is 470400, while the sum is 46.

The square root of 2771148556 is about 52641.6997825868. The cubic root of 2771148556 is about 1404.6019576328.

It can be divided in two parts, 27711 and 48556, that added together give a palindrome (76267).

The spelling of 2771148556 in words is "two billion, seven hundred seventy-one million, one hundred forty-eight thousand, five hundred fifty-six".