2775453856 has 24 divisors (see below), whose sum is σ = 6244771680. Its totient is φ = 1189480128.

The previous prime is 2775453803. The next prime is 2775453871. The reversal of 2775453856 is 6583545772.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6194986 + ... + 6195433.

It is an arithmetic number, because the mean of its divisors is an integer number (260198820).

Almost surely, 2^2775453856 is an apocalyptic number.

It is an amenable number.

2775453856 is an abundant number, since it is smaller than the sum of its proper divisors (3469317824).

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

2775453856 is a wasteful number, since it uses less digits than its factorization.

2775453856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12390436 (or 12390428 counting only the distinct ones).

The product of its digits is 7056000, while the sum is 52.

The square root of 2775453856 is about 52682.5763986539. The cubic root of 2775453856 is about 1405.3289851563.

The spelling of 2775453856 in words is "two billion, seven hundred seventy-five million, four hundred fifty-three thousand, eight hundred fifty-six".