2052784681 has 8 divisors (see below), whose sum is σ = 2161706400. Its totient is φ = 1943951040.

The previous prime is 2052784667. The next prime is 2052784717. The reversal of 2052784681 is 1864872502.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2052784681 - 2⁵ = 2052784649 is a prime.

It is a super-2 number, since 2×2052784681² = 8427849893096543522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2052784081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28866 + ... + 70276.

It is an arithmetic number, because the mean of its divisors is an integer number (270213300).

Almost surely, 2^2052784681 is an apocalyptic number.

It is an amenable number.

2052784681 is a deficient number, since it is larger than the sum of its proper divisors (108921719).

2052784681 is a wasteful number, since it uses less digits than its factorization.

2052784681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44039.

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 2052784681 is about 45307.6669119036. Note that the first 3 decimals coincide. The cubic root of 2052784681 is about 1270.9090317437.

The spelling of 2052784681 in words is "two billion, fifty-two million, seven hundred eighty-four thousand, six hundred eighty-one".