395513671643 has 8 divisors (see below), whose sum is σ = 402909135120. Its totient is φ = 388162098720.

The previous prime is 395513671591. The next prime is 395513671661. The reversal of 395513671643 is 346176315593.

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

It is not a de Polignac number, because 395513671643 - 2¹² = 395513667547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395513571643) 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, 10954448 + ... + 10990493.

It is an arithmetic number, because the mean of its divisors is an integer number (50363641890).

Almost surely, 2^395513671643 is an apocalyptic number.

395513671643 is a deficient number, since it is larger than the sum of its proper divisors (7395463477).

395513671643 is a wasteful number, since it uses less digits than its factorization.

395513671643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21945277.

The product of its digits is 6123600, while the sum is 53.

The spelling of 395513671643 in words is "three hundred ninety-five billion, five hundred thirteen million, six hundred seventy-one thousand, six hundred forty-three".