393701632808 has 128 divisors (see below), whose sum is σ = 855372752640. Its totient is φ = 168115200000.

The previous prime is 393701632799. The next prime is 393701632813. The reversal of 393701632808 is 808236107393.

It is a happy number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 98398808 + ... + 98402808.

It is an arithmetic number, because the mean of its divisors is an integer number (6682599630).

Almost surely, 2^393701632808 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 393701632808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427686376320).

393701632808 is an abundant number, since it is smaller than the sum of its proper divisors (461671119832).

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

393701632808 is a wasteful number, since it uses less digits than its factorization.

393701632808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4899 (or 4895 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 393701632808 in words is "three hundred ninety-three billion, seven hundred one million, six hundred thirty-two thousand, eight hundred eight".