394566095808 has 140 divisors (see below), whose sum is σ = 1181199453192. Its totient is φ = 130219660800.

The previous prime is 394566095779. The next prime is 394566095813. The reversal of 394566095808 is 808590665493.

394566095808 is a `hidden beast` number, since 3 + 9 + 45 + 6 + 6 + 0 + 9 + 580 + 8 = 666.

It is a super-2 number, since 2×394566095808² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 146791 + ... + 900377.

Almost surely, 2^394566095808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394566095808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (590599726596).

394566095808 is an abundant number, since it is smaller than the sum of its proper divisors (786633357384).

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

394566095808 is a wasteful number, since it uses less digits than its factorization.

394566095808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753712 (or 753693 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 394566095808 in words is "three hundred ninety-four billion, five hundred sixty-six million, ninety-five thousand, eight hundred eight".