2054284681 has 2 divisors, whose sum is σ = 2054284682. Its totient is φ = 2054284680.

The previous prime is 2054284679. The next prime is 2054284691. The reversal of 2054284681 is 1864824502.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1891467081 + 162817600 = 43491^2 + 12760^2 .

It is a cyclic number.

It is not a de Polignac number, because 2054284681 - 2¹ = 2054284679 is a prime.

It is a super-2 number, since 2×2054284681² = 8440171101182543522, which contains 22 as substring.

Together with 2054284679, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2054284621) by changing a digit.

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 as a sum of consecutive naturals, namely, 1027142340 + 1027142341.

It is an arithmetic number, because the mean of its divisors is an integer number (1027142341).

Almost surely, 2^2054284681 is an apocalyptic number.

It is an amenable number.

2054284681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2054284681 is an equidigital number, since it uses as much as digits as its factorization.

2054284681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 2054284681 is about 45324.2173787921. The cubic root of 2054284681 is about 1271.2185136908.

The spelling of 2054284681 in words is "two billion, fifty-four million, two hundred eighty-four thousand, six hundred eighty-one".