387900028928 has 48 divisors (see below), whose sum is σ = 776139731640. Its totient is φ = 193817714688.

The previous prime is 387900028907. The next prime is 387900028933. The reversal of 387900028928 is 829820009783.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2973326 + ... + 3101042.

Almost surely, 2^387900028928 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 387900028928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388069865820).

387900028928 is an abundant number, since it is smaller than the sum of its proper divisors (388239702712).

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

387900028928 is a wasteful number, since it uses less digits than its factorization.

387900028928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129222 (or 129202 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 56.

The spelling of 387900028928 in words is "three hundred eighty-seven billion, nine hundred million, twenty-eight thousand, nine hundred twenty-eight".