3881261165 has 8 divisors (see below), whose sum is σ = 4658992128. Its totient is φ = 3104023120.

The previous prime is 3881261147. The next prime is 3881261171. The reversal of 3881261165 is 5611621883.

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

It is not a de Polignac number, because 3881261165 - 2¹⁴ = 3881244781 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105677 + ... + 137586.

It is an arithmetic number, because the mean of its divisors is an integer number (582374016).

Almost surely, 2^3881261165 is an apocalyptic number.

It is an amenable number.

3881261165 is a deficient number, since it is larger than the sum of its proper divisors (777730963).

3881261165 is a wasteful number, since it uses less digits than its factorization.

3881261165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246459.

The product of its digits is 69120, while the sum is 41.

The square root of 3881261165 is about 62299.7685790244. The cubic root of 3881261165 is about 1571.5358366744.

The spelling of 3881261165 in words is "three billion, eight hundred eighty-one million, two hundred sixty-one thousand, one hundred sixty-five".