387867121872 has 40 divisors (see below), whose sum is σ = 1007990026176. Its totient is φ = 128514852096.

The previous prime is 387867121843. The next prime is 387867121877. The reversal of 387867121872 is 278121768783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387867121877) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 24185293 + ... + 24201324.

Almost surely, 2^387867121872 is an apocalyptic number.

It is an amenable number.

387867121872 is an abundant number, since it is smaller than the sum of its proper divisors (620122904304).

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

387867121872 is a wasteful number, since it uses less digits than its factorization.

387867121872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48386795 (or 48386789 counting only the distinct ones).

The product of its digits is 12644352, while the sum is 60.

The spelling of 387867121872 in words is "three hundred eighty-seven billion, eight hundred sixty-seven million, one hundred twenty-one thousand, eight hundred seventy-two".