387500125128 has 16 divisors (see below), whose sum is σ = 968750312880. Its totient is φ = 129166708368.

The previous prime is 387500125081. The next prime is 387500125141. The reversal of 387500125128 is 821521005783.

It is a self number, because there is not a number n which added to its sum of digits gives 387500125128.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8072919250 + ... + 8072919297.

It is an arithmetic number, because the mean of its divisors is an integer number (60546894555).

Almost surely, 2^387500125128 is an apocalyptic number.

It is an amenable number.

387500125128 is an abundant number, since it is smaller than the sum of its proper divisors (581250187752).

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

387500125128 is a wasteful number, since it uses less digits than its factorization.

387500125128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16145838556 (or 16145838552 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 42.

The spelling of 387500125128 in words is "three hundred eighty-seven billion, five hundred million, one hundred twenty-five thousand, one hundred twenty-eight".