485438579819 has 2 divisors, whose sum is σ = 485438579820. Its totient is φ = 485438579818.

The previous prime is 485438579789. The next prime is 485438579839. The reversal of 485438579819 is 918975834584.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-485438579819 is a prime.

It is a super-2 number, since 2×485438579819² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (485438579839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242719289909 + 242719289910.

It is an arithmetic number, because the mean of its divisors is an integer number (242719289910).

Almost surely, 2^485438579819 is an apocalyptic number.

485438579819 is a deficient number, since it is larger than the sum of its proper divisors (1).

485438579819 is an equidigital number, since it uses as much as digits as its factorization.

485438579819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 348364800, while the sum is 71.

The spelling of 485438579819 in words is "four hundred eighty-five billion, four hundred thirty-eight million, five hundred seventy-nine thousand, eight hundred nineteen".