3856886278 has 16 divisors (see below), whose sum is σ = 6621645600. Its totient is φ = 1650491136.

The previous prime is 3856886263. The next prime is 3856886279. The reversal of 3856886278 is 8726886583.

3856886278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3856886278² = 29751143522849386568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856886279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195253 + ... + 214096.

It is an arithmetic number, because the mean of its divisors is an integer number (413852850).

Almost surely, 2^3856886278 is an apocalyptic number.

3856886278 is a deficient number, since it is larger than the sum of its proper divisors (2764759322).

3856886278 is a wasteful number, since it uses less digits than its factorization.

3856886278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410031.

The product of its digits is 30965760, while the sum is 61.

The square root of 3856886278 is about 62103.8346481117. The cubic root of 3856886278 is about 1568.2391008226.

The spelling of 3856886278 in words is "three billion, eight hundred fifty-six million, eight hundred eighty-six thousand, two hundred seventy-eight".