395668866593 has 48 divisors (see below), whose sum is σ = 538442136960. Its totient is φ = 284595648480.

The previous prime is 395668866569. The next prime is 395668866613.

395668866593 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 395668866593 - 2²⁴ = 395652089377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 395668866593.

It is not an unprimeable number, because it can be changed into a prime (395668866503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1754546 + ... + 1967172.

It is an arithmetic number, because the mean of its divisors is an integer number (11217544520).

Almost surely, 2^395668866593 is an apocalyptic number.

It is an amenable number.

395668866593 is a deficient number, since it is larger than the sum of its proper divisors (142773270367).

395668866593 is a wasteful number, since it uses less digits than its factorization.

395668866593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212695 (or 212658 counting only the distinct ones).

The product of its digits is 1511654400, while the sum is 74.

The spelling of 395668866593 in words is "three hundred ninety-five billion, six hundred sixty-eight million, eight hundred sixty-six thousand, five hundred ninety-three".