2827768820 has 12 divisors (see below), whose sum is σ = 5938314564. Its totient is φ = 1131107520.

The previous prime is 2827768813. The next prime is 2827768843. The reversal of 2827768820 is 288677282.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 418529764 + 2409239056 = 20458^2 + 49084^2 .

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, 70694201 + ... + 70694240.

It is an arithmetic number, because the mean of its divisors is an integer number (494859547).

Almost surely, 2^2827768820 is an apocalyptic number.

2827768820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2827768820 is an abundant number, since it is smaller than the sum of its proper divisors (3110545744).

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

2827768820 is a wasteful number, since it uses less digits than its factorization.

2827768820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141388450 (or 141388448 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 50.

The square root of 2827768820 is about 53176.7695521268. The cubic root of 2827768820 is about 1414.1038364022.

The spelling of 2827768820 in words is "two billion, eight hundred twenty-seven million, seven hundred sixty-eight thousand, eight hundred twenty".