396205131845 has 8 divisors (see below), whose sum is σ = 475467214464. Its totient is φ = 316950067984.

The previous prime is 396205131827. The next prime is 396205131857. The reversal of 396205131845 is 548131502693.

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 396205131845 - 2⁶ = 396205131781 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 396205131845.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1629689 + ... + 1856958.

It is an arithmetic number, because the mean of its divisors is an integer number (59433401808).

Almost surely, 2^396205131845 is an apocalyptic number.

It is an amenable number.

396205131845 is a deficient number, since it is larger than the sum of its proper divisors (79262082619).

396205131845 is a wasteful number, since it uses less digits than its factorization.

396205131845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3509379.

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 396205131845 in words is "three hundred ninety-six billion, two hundred five million, one hundred thirty-one thousand, eight hundred forty-five".