394149326808 has 16 divisors (see below), whose sum is σ = 985373317080. Its totient is φ = 131383108928.

The previous prime is 394149326807. The next prime is 394149326863. The reversal of 394149326808 is 808623941493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394149326807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8211444285 + ... + 8211444332.

Almost surely, 2^394149326808 is an apocalyptic number.

It is an amenable number.

394149326808 is an abundant number, since it is smaller than the sum of its proper divisors (591223990272).

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

394149326808 is a wasteful number, since it uses less digits than its factorization.

394149326808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16422888626 (or 16422888622 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 57.

The spelling of 394149326808 in words is "three hundred ninety-four billion, one hundred forty-nine million, three hundred twenty-six thousand, eight hundred eight".