3685448445863 has 2 divisors, whose sum is σ = 3685448445864. Its totient is φ = 3685448445862.

The previous prime is 3685448445851. The next prime is 3685448445883.

3685448445863 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 3685448445863 - 2²⁰ = 3685447397287 is a prime.

It is a super-2 number, since 2×3685448445863² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3685448445793 and 3685448445802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3685448445823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1842724222931 + 1842724222932.

It is an arithmetic number, because the mean of its divisors is an integer number (1842724222932).

Almost surely, 2^{3685448445863} is an apocalyptic number.

3685448445863 is a deficient number, since it is larger than the sum of its proper divisors (1).

3685448445863 is an equidigital number, since it uses as much as digits as its factorization.

3685448445863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1061683200, while the sum is 68.

The spelling of 3685448445863 in words is "three trillion, six hundred eighty-five billion, four hundred forty-eight million, four hundred forty-five thousand, eight hundred sixty-three".