38693906328 has 256 divisors, whose sum is σ = 125483904000. Its totient is φ = 9647769600.

The previous prime is 38693906311. The next prime is 38693906359. The reversal of 38693906328 is 82360939683.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9698158 + ... + 9702146.

It is an arithmetic number, because the mean of its divisors is an integer number (490171500).

Almost surely, 2^38693906328 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 38693906328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62741952000).

38693906328 is an abundant number, since it is smaller than the sum of its proper divisors (86789997672).

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

38693906328 is a wasteful number, since it uses less digits than its factorization.

38693906328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4226 (or 4222 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 57.

The spelling of 38693906328 in words is "thirty-eight billion, six hundred ninety-three million, nine hundred six thousand, three hundred twenty-eight".