395881512012 has 72 divisors (see below), whose sum is σ = 1143722361600. Its totient is φ = 113102608608.

The previous prime is 395881512011. The next prime is 395881512017. The reversal of 395881512012 is 210215188593.

395881512012 is a `hidden beast` number, since 3 + 9 + 58 + 81 + 512 + 0 + 1 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (395881512011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6111289 + ... + 6175727.

It is an arithmetic number, because the mean of its divisors is an integer number (15885032800).

Almost surely, 2^395881512012 is an apocalyptic number.

It is an amenable number.

395881512012 is an abundant number, since it is smaller than the sum of its proper divisors (747840849588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

395881512012 is a wasteful number, since it uses less digits than its factorization.

395881512012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88835 (or 88830 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 45.

The spelling of 395881512012 in words is "three hundred ninety-five billion, eight hundred eighty-one million, five hundred twelve thousand, twelve".