2778522328 has 16 divisors (see below), whose sum is σ = 5268267000. Its totient is φ = 1373651136.

The previous prime is 2778522293. The next prime is 2778522353. The reversal of 2778522328 is 8232258772.

2778522328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 1950498 + ... + 1951921.

Almost surely, 2^2778522328 is an apocalyptic number.

It is an amenable number.

2778522328 is a deficient number, since it is larger than the sum of its proper divisors (2489744672).

2778522328 is a wasteful number, since it uses less digits than its factorization.

2778522328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3902514 (or 3902510 counting only the distinct ones).

The product of its digits is 752640, while the sum is 46.

The square root of 2778522328 is about 52711.6906198236. The cubic root of 2778522328 is about 1405.8466932121.

The spelling of 2778522328 in words is "two billion, seven hundred seventy-eight million, five hundred twenty-two thousand, three hundred twenty-eight".