38885212128 has 384 divisors, whose sum is σ = 128024064000. Its totient is φ = 10086543360.

The previous prime is 38885212117. The next prime is 38885212141. The reversal of 38885212128 is 82121258883.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 30885163 + ... + 30886421.

It is an arithmetic number, because the mean of its divisors is an integer number (333396000).

Almost surely, 2^38885212128 is an apocalyptic number.

38885212128 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38885212128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64012032000).

38885212128 is an abundant number, since it is smaller than the sum of its proper divisors (89138851872).

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

38885212128 is a wasteful number, since it uses less digits than its factorization.

38885212128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398 (or 1390 counting only the distinct ones).

The product of its digits is 491520, while the sum is 48.

The spelling of 38885212128 in words is "thirty-eight billion, eight hundred eighty-five million, two hundred twelve thousand, one hundred twenty-eight".