485018861 has 2 divisors, whose sum is σ = 485018862. Its totient is φ = 485018860.

The previous prime is 485018827. The next prime is 485018879. The reversal of 485018861 is 168810584.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 475501636 + 9517225 = 21806^2 + 3085^2 .

It is a cyclic number.

It is not a de Polignac number, because 485018861 - 2⁶ = 485018797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (485018161) 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, 242509430 + 242509431.

It is an arithmetic number, because the mean of its divisors is an integer number (242509431).

Almost surely, 2^485018861 is an apocalyptic number.

It is an amenable number.

485018861 is a deficient number, since it is larger than the sum of its proper divisors (1).

485018861 is an equidigital number, since it uses as much as digits as its factorization.

485018861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61440, while the sum is 41.

The square root of 485018861 is about 22023.1437583284. The cubic root of 485018861 is about 785.6929853698.

The spelling of 485018861 in words is "four hundred eighty-five million, eighteen thousand, eight hundred sixty-one".