394827965616 has 480 divisors, whose sum is σ = 1296060403968. Its totient is φ = 102852771840.

The previous prime is 394827965591. The next prime is 394827965627. The reversal of 394827965616 is 616569728493.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 225228996 + ... + 225230748.

Almost surely, 2^394827965616 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 394827965616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (648030201984).

394827965616 is an abundant number, since it is smaller than the sum of its proper divisors (901232438352).

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

394827965616 is a wasteful number, since it uses less digits than its factorization.

394827965616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969 (or 1956 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 66.

The spelling of 394827965616 in words is "three hundred ninety-four billion, eight hundred twenty-seven million, nine hundred sixty-five thousand, six hundred sixteen".