3877864128 has 84 divisors (see below), whose sum is σ = 11700240760. Its totient is φ = 1224585216.

The previous prime is 3877864087. The next prime is 3877864181. The reversal of 3877864128 is 8214687783.

It is a happy 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 11 ways as a sum of consecutive naturals, for example, 166225 + ... + 188112.

Almost surely, 2^3877864128 is an apocalyptic number.

3877864128 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3877864128 is an abundant number, since it is smaller than the sum of its proper divisors (7822376632).

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

3877864128 is a wasteful number, since it uses less digits than its factorization.

3877864128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354374 (or 354361 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 54.

The square root of 3877864128 is about 62272.4989702517. The cubic root of 3877864128 is about 1571.0772122373.

The spelling of 3877864128 in words is "three billion, eight hundred seventy-seven million, eight hundred sixty-four thousand, one hundred twenty-eight".