3865031371841 has 4 divisors (see below), whose sum is σ = 3888743220912. Its totient is φ = 3841319522772.

The previous prime is 3865031371837. The next prime is 3865031371871. The reversal of 3865031371841 is 1481731305683.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3865031371841 - 2² = 3865031371837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3865031371841.

It is not an unprimeable number, because it can be changed into a prime (3865031371871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11855924291 + ... + 11855924616.

It is an arithmetic number, because the mean of its divisors is an integer number (972185805228).

Almost surely, 2^{3865031371841} is an apocalyptic number.

It is an amenable number.

3865031371841 is a deficient number, since it is larger than the sum of its proper divisors (23711849071).

3865031371841 is a wasteful number, since it uses less digits than its factorization.

3865031371841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23711849070.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 3865031371841 in words is "three trillion, eight hundred sixty-five billion, thirty-one million, three hundred seventy-one thousand, eight hundred forty-one".