485902199045909 has 2 divisors, whose sum is σ = 485902199045910. Its totient is φ = 485902199045908.

The previous prime is 485902199045831. The next prime is 485902199045947. The reversal of 485902199045909 is 909540991209584.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 452902114561009 + 33000084484900 = 21281497^2 + 5744570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-485902199045909 is a prime.

It is a super-2 number, since 2×485902199045909² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (485902199044909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242951099522954 + 242951099522955.

It is an arithmetic number, because the mean of its divisors is an integer number (242951099522955).

Almost surely, 2^{485902199045909} is an apocalyptic number.

It is an amenable number.

485902199045909 is a deficient number, since it is larger than the sum of its proper divisors (1).

485902199045909 is an equidigital number, since it uses as much as digits as its factorization.

485902199045909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 377913600, while the sum is 74.

The spelling of 485902199045909 in words is "four hundred eighty-five trillion, nine hundred two billion, one hundred ninety-nine million, forty-five thousand, nine hundred nine".