394817917676 has 144 divisors (see below), whose sum is σ = 911774626560. Its totient is φ = 147864528000.

The previous prime is 394817917651. The next prime is 394817917717. The reversal of 394817917676 is 676719718493.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 108973601 + ... + 108977223.

It is an arithmetic number, because the mean of its divisors is an integer number (6331768240).

Almost surely, 2^394817917676 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 394817917676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455887313280).

394817917676 is an abundant number, since it is smaller than the sum of its proper divisors (516956708884).

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

394817917676 is a wasteful number, since it uses less digits than its factorization.

394817917676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5924 (or 5915 counting only the distinct ones).

The product of its digits is 96018048, while the sum is 68.

The spelling of 394817917676 in words is "three hundred ninety-four billion, eight hundred seventeen million, nine hundred seventeen thousand, six hundred seventy-six".