2750866820 has 24 divisors (see below), whose sum is σ = 6221191704. Its totient is φ = 1015704576.

The previous prime is 2750866777. The next prime is 2750866831. The reversal of 2750866820 is 286680572.

It can be written as a sum of positive squares in 4 ways, for example, as 486820096 + 2264046724 = 22064^2 + 47582^2 .

It is a super-2 number, since 2×2750866820² = 15134536522753824800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5289869 + ... + 5290388.

It is an arithmetic number, because the mean of its divisors is an integer number (259216321).

Almost surely, 2^2750866820 is an apocalyptic number.

2750866820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2750866820 is an abundant number, since it is smaller than the sum of its proper divisors (3470324884).

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

2750866820 is a wasteful number, since it uses less digits than its factorization.

2750866820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10580279 (or 10580277 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 2750866820 is about 52448.7065617447. The cubic root of 2750866820 is about 1401.1668537264.

The spelling of 2750866820 in words is "two billion, seven hundred fifty million, eight hundred sixty-six thousand, eight hundred twenty".