394531429968 has 160 divisors (see below), whose sum is σ = 1245511948800. Its totient is φ = 118811349504.

The previous prime is 394531429967. The next prime is 394531429969. The reversal of 394531429968 is 869924135493.

394531429968 is a `hidden beast` number, since 3 + 9 + 4 + 531 + 4 + 2 + 9 + 96 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (394531429967) and next prime (394531429969).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394531429967) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 483403 + ... + 1011306.

It is an arithmetic number, because the mean of its divisors is an integer number (7784449680).

Almost surely, 2^394531429968 is an apocalyptic number.

It is an amenable number.

394531429968 is an abundant number, since it is smaller than the sum of its proper divisors (850980518832).

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

394531429968 is a wasteful number, since it uses less digits than its factorization.

394531429968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494786 (or 1494774 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 63.

The spelling of 394531429968 in words is "three hundred ninety-four billion, five hundred thirty-one million, four hundred twenty-nine thousand, nine hundred sixty-eight".