395513671642 has 8 divisors (see below), whose sum is σ = 593276094432. Its totient is φ = 197754973500.

The previous prime is 395513671591. The next prime is 395513671661. The reversal of 395513671642 is 246176315593.

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

It is a self number, because there is not a number n which added to its sum of digits gives 395513671642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648534 + ... + 1100737.

It is an arithmetic number, because the mean of its divisors is an integer number (74159511804).

Almost surely, 2^395513671642 is an apocalyptic number.

395513671642 is a deficient number, since it is larger than the sum of its proper divisors (197762422790).

395513671642 is a wasteful number, since it uses less digits than its factorization.

395513671642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862324.

The product of its digits is 4082400, while the sum is 52.

The spelling of 395513671642 in words is "three hundred ninety-five billion, five hundred thirteen million, six hundred seventy-one thousand, six hundred forty-two".