395447475841 has 8 divisors (see below), whose sum is σ = 431431152768. Its totient is φ = 359469450000.

The previous prime is 395447475823. The next prime is 395447475881. The reversal of 395447475841 is 148574744593.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 395447475841 - 2¹¹ = 395447473793 is a prime.

It is a super-2 number, since 2×395447475841² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 395447475841.

It is not an unprimeable number, because it can be changed into a prime (395447475881) 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, 1265785 + ... + 1546966.

It is an arithmetic number, because the mean of its divisors is an integer number (53928894096).

Almost surely, 2^395447475841 is an apocalyptic number.

It is an amenable number.

395447475841 is a deficient number, since it is larger than the sum of its proper divisors (35983676927).

395447475841 is a wasteful number, since it uses less digits than its factorization.

395447475841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825543.

The product of its digits is 67737600, while the sum is 61.

The spelling of 395447475841 in words is "three hundred ninety-five billion, four hundred forty-seven million, four hundred seventy-five thousand, eight hundred forty-one".