2775457216 has 56 divisors (see below), whose sum is σ = 6422847200. Its totient is φ = 1189472256.

The previous prime is 2775457123. The next prime is 2775457229. The reversal of 2775457216 is 6127545772.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41265 + ... + 85168.

It is an arithmetic number, because the mean of its divisors is an integer number (114693700).

Almost surely, 2^2775457216 is an apocalyptic number.

It is an amenable number.

2775457216 is an abundant number, since it is smaller than the sum of its proper divisors (3647389984).

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

2775457216 is an equidigital number, since it uses as much as digits as its factorization.

2775457216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126466 (or 126442 counting only the distinct ones).

The product of its digits is 823200, while the sum is 46.

The square root of 2775457216 is about 52682.6082877452. The cubic root of 2775457216 is about 1405.3295522592.

The spelling of 2775457216 in words is "two billion, seven hundred seventy-five million, four hundred fifty-seven thousand, two hundred sixteen".