5657468081 has 2 divisors, whose sum is σ = 5657468082. Its totient is φ = 5657468080.

The previous prime is 5657468077. The next prime is 5657468083. The reversal of 5657468081 is 1808647565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5326810225 + 330657856 = 72985^2 + 18184^2 .

It is a cyclic number.

It is not a de Polignac number, because 5657468081 - 2² = 5657468077 is a prime.

It is a super-2 number, since 2×5657468081² = 64013890175067645122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 5657468083, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5657468083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828734040 + 2828734041.

It is an arithmetic number, because the mean of its divisors is an integer number (2828734041).

Almost surely, 2^5657468081 is an apocalyptic number.

It is an amenable number.

5657468081 is a deficient number, since it is larger than the sum of its proper divisors (1).

5657468081 is an equidigital number, since it uses as much as digits as its factorization.

5657468081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The square root of 5657468081 is about 75216.1424230198. The cubic root of 5657468081 is about 1781.8618822195.

The spelling of 5657468081 in words is "five billion, six hundred fifty-seven million, four hundred sixty-eight thousand, eighty-one".