3881878285 has 8 divisors (see below), whose sum is σ = 4757366016. Its totient is φ = 3039427920.

The previous prime is 3881878279. The next prime is 3881878313. The reversal of 3881878285 is 5828781883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3881878285 - 2²⁹ = 3345007373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8259081 + ... + 8259550.

It is an arithmetic number, because the mean of its divisors is an integer number (594670752).

Almost surely, 2^3881878285 is an apocalyptic number.

It is an amenable number.

3881878285 is a deficient number, since it is larger than the sum of its proper divisors (875487731).

3881878285 is a wasteful number, since it uses less digits than its factorization.

3881878285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16518683.

The product of its digits is 6881280, while the sum is 58.

The square root of 3881878285 is about 62304.7212095520. The cubic root of 3881878285 is about 1571.6191235888.

The spelling of 3881878285 in words is "three billion, eight hundred eighty-one million, eight hundred seventy-eight thousand, two hundred eighty-five".