394788358416 has 80 divisors (see below), whose sum is σ = 1053020142080. Its totient is φ = 127320698880.

The previous prime is 394788358357. The next prime is 394788358417. The reversal of 394788358416 is 614853887493.

It is not an unprimeable number, because it can be changed into a prime (394788358417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6685950 + ... + 6744738.

It is an arithmetic number, because the mean of its divisors is an integer number (13162751776).

Almost surely, 2^394788358416 is an apocalyptic number.

It is an amenable number.

394788358416 is an abundant number, since it is smaller than the sum of its proper divisors (658231783664).

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

394788358416 is a wasteful number, since it uses less digits than its factorization.

394788358416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63344 (or 63338 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 66.

The spelling of 394788358416 in words is "three hundred ninety-four billion, seven hundred eighty-eight million, three hundred fifty-eight thousand, four hundred sixteen".