395448673769 has 8 divisors (see below), whose sum is σ = 396729421128. Its totient is φ = 394168136320.

The previous prime is 395448673663. The next prime is 395448673793. The reversal of 395448673769 is 967376844593.

It can be written as a sum of positive squares in 4 ways, for example, as 1817913769 + 393630760000 = 42637^2 + 627400^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395448673769 is a prime.

It is a super-2 number, since 2×395448673769² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395448673069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4304099 + ... + 4395015.

It is an arithmetic number, because the mean of its divisors is an integer number (49591177641).

Almost surely, 2^395448673769 is an apocalyptic number.

It is an amenable number.

395448673769 is a deficient number, since it is larger than the sum of its proper divisors (1280747359).

395448673769 is a wasteful number, since it uses less digits than its factorization.

395448673769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104955.

The product of its digits is 823011840, while the sum is 71.

The spelling of 395448673769 in words is "three hundred ninety-five billion, four hundred forty-eight million, six hundred seventy-three thousand, seven hundred sixty-nine".