576778481 has 2 divisors, whose sum is σ = 576778482. Its totient is φ = 576778480.

The previous prime is 576778451. The next prime is 576778483. The reversal of 576778481 is 184877675.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381030400 + 195748081 = 19520^2 + 13991^2 .

It is a cyclic number.

It is not a de Polignac number, because 576778481 - 2¹⁰ = 576777457 is a prime.

It is a super-2 number, since 2×576778481² = 665346832289334722, which contains 22 as substring.

Together with 576778483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (576778483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288389240 + 288389241.

It is an arithmetic number, because the mean of its divisors is an integer number (288389241).

Almost surely, 2^576778481 is an apocalyptic number.

It is an amenable number.

576778481 is a deficient number, since it is larger than the sum of its proper divisors (1).

576778481 is an equidigital number, since it uses as much as digits as its factorization.

576778481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2634240, while the sum is 53.

The square root of 576778481 is about 24016.2128779706. The cubic root of 576778481 is about 832.4081997691.

It can be divided in two parts, 5767 and 78481, that added together give a palindrome (84248).

The spelling of 576778481 in words is "five hundred seventy-six million, seven hundred seventy-eight thousand, four hundred eighty-one".