3878569333728 has 96 divisors (see below), whose sum is σ = 11313631113120. Its totient is φ = 1292726476800.

The previous prime is 3878569333687. The next prime is 3878569333759. The reversal of 3878569333728 is 8273339658783.

3878569333728 is a `hidden beast` number, since 3 + 8 + 7 + 8 + 569 + 3 + 3 + 37 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8572378 + ... + 9013478.

It is an arithmetic number, because the mean of its divisors is an integer number (117850324095).

Almost surely, 2^{3878569333728} is an apocalyptic number.

It is an amenable number.

3878569333728 is an abundant number, since it is smaller than the sum of its proper divisors (7435061779392).

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

3878569333728 is a wasteful number, since it uses less digits than its factorization.

3878569333728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451297 (or 451283 counting only the distinct ones).

The product of its digits is 1097349120, while the sum is 72.

The spelling of 3878569333728 in words is "three trillion, eight hundred seventy-eight billion, five hundred sixty-nine million, three hundred thirty-three thousand, seven hundred twenty-eight".