394611045728 has 12 divisors (see below), whose sum is σ = 776890496340. Its totient is φ = 197305522848.

The previous prime is 394611045727. The next prime is 394611045749. The reversal of 394611045728 is 827540116493.

It is a happy number.

It is a super-3 number, since 3×394611045728³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394611045727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6165797558 + ... + 6165797621.

It is an arithmetic number, because the mean of its divisors is an integer number (64740874695).

It is a 1-persistent number, because it is pandigital, but 2⋅394611045728 = 789222091456 is not.

Almost surely, 2^394611045728 is an apocalyptic number.

It is an amenable number.

394611045728 is a deficient number, since it is larger than the sum of its proper divisors (382279450612).

394611045728 is a wasteful number, since it uses less digits than its factorization.

394611045728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12331595189 (or 12331595181 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 394611045728 in words is "three hundred ninety-four billion, six hundred eleven million, forty-five thousand, seven hundred twenty-eight".