2776455668 has 24 divisors (see below), whose sum is σ = 5657686272. Its totient is φ = 1167457824.

The previous prime is 2776455637. The next prime is 2776455673. The reversal of 2776455668 is 8665546772.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933980 + ... + 936947.

It is an arithmetic number, because the mean of its divisors is an integer number (235736928).

Almost surely, 2^2776455668 is an apocalyptic number.

2776455668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2776455668 is an abundant number, since it is smaller than the sum of its proper divisors (2881230604).

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

2776455668 is a wasteful number, since it uses less digits than its factorization.

2776455668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870991 (or 1870989 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 56.

The square root of 2776455668 is about 52692.0835420274. The cubic root of 2776455668 is about 1405.4980513290.

The spelling of 2776455668 in words is "two billion, seven hundred seventy-six million, four hundred fifty-five thousand, six hundred sixty-eight".