2771222608 has 80 divisors (see below), whose sum is σ = 6703428096. Its totient is φ = 1078197120.

The previous prime is 2771222563. The next prime is 2771222627. The reversal of 2771222608 is 8062221772.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1382535 + ... + 1384537.

Almost surely, 2^2771222608 is an apocalyptic number.

2771222608 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2771222608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3351714048).

2771222608 is an abundant number, since it is smaller than the sum of its proper divisors (3932205488).

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

2771222608 is a wasteful number, since it uses less digits than its factorization.

2771222608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152 (or 3146 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 2771222608 is about 52642.4031366350. The cubic root of 2771222608 is about 1404.6144690103.

The spelling of 2771222608 in words is "two billion, seven hundred seventy-one million, two hundred twenty-two thousand, six hundred eight".