468585781 has 2 divisors, whose sum is σ = 468585782. Its totient is φ = 468585780.

The previous prime is 468585751. The next prime is 468585869. The reversal of 468585781 is 187585864.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 445632100 + 22953681 = 21110^2 + 4791^2 .

It is a cyclic number.

It is not a de Polignac number, because 468585781 - 2⁷ = 468585653 is a prime.

It is a super-2 number, since 2×468585781² = 439145268310759922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (468585701) 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, 234292890 + 234292891.

It is an arithmetic number, because the mean of its divisors is an integer number (234292891).

Almost surely, 2^468585781 is an apocalyptic number.

It is an amenable number.

468585781 is a deficient number, since it is larger than the sum of its proper divisors (1).

468585781 is an equidigital number, since it uses as much as digits as its factorization.

468585781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2150400, while the sum is 52.

The square root of 468585781 is about 21646.8422870404. The cubic root of 468585781 is about 776.7174018281.

The spelling of 468585781 in words is "four hundred sixty-eight million, five hundred eighty-five thousand, seven hundred eighty-one".