395309806122 has 128 divisors (see below), whose sum is σ = 996555571200. Its totient is φ = 101549352960.

The previous prime is 395309806093. The next prime is 395309806123. The reversal of 395309806122 is 221608903593.

It is not an unprimeable number, because it can be changed into a prime (395309806123) 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 63 ways as a sum of consecutive naturals, for example, 107506948 + ... + 107510624.

It is an arithmetic number, because the mean of its divisors is an integer number (7785590400).

Almost surely, 2^395309806122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 395309806122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (498277785600).

395309806122 is an abundant number, since it is smaller than the sum of its proper divisors (601245765078).

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

395309806122 is a wasteful number, since it uses less digits than its factorization.

395309806122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6196.

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 395309806122 in words is "three hundred ninety-five billion, three hundred nine million, eight hundred six thousand, one hundred twenty-two".