3878287168 has 28 divisors (see below), whose sum is σ = 8795402272. Its totient is φ = 1662122880.

The previous prime is 3878287159. The next prime is 3878287187. The reversal of 3878287168 is 8617828783.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-2 number, since 2×3878287168² = 30082222714946920448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4327998 + ... + 4328893.

Almost surely, 2^3878287168 is an apocalyptic number.

It is an amenable number.

3878287168 is an abundant number, since it is smaller than the sum of its proper divisors (4917115104).

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

3878287168 is an equidigital number, since it uses as much as digits as its factorization.

3878287168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8656910 (or 8656900 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 58.

The square root of 3878287168 is about 62275.8955616055. The cubic root of 3878287168 is about 1571.1343402778.

The spelling of 3878287168 in words is "three billion, eight hundred seventy-eight million, two hundred eighty-seven thousand, one hundred sixty-eight".