394663949126 has 16 divisors (see below), whose sum is σ = 612433664640. Its totient is φ = 190519929600.

The previous prime is 394663949117. The next prime is 394663949129. The reversal of 394663949126 is 621949366493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394663949129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1530326 + ... + 1769526.

It is an arithmetic number, because the mean of its divisors is an integer number (38277104040).

Almost surely, 2^394663949126 is an apocalyptic number.

394663949126 is a deficient number, since it is larger than the sum of its proper divisors (217769715514).

394663949126 is a wasteful number, since it uses less digits than its factorization.

394663949126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267679.

The product of its digits is 45349632, while the sum is 62.

The spelling of 394663949126 in words is "three hundred ninety-four billion, six hundred sixty-three million, nine hundred forty-nine thousand, one hundred twenty-six".