3867165628265 has 16 divisors (see below), whose sum is σ = 4642449181776. Its totient is φ = 3092499168000.

The previous prime is 3867165628259. The next prime is 3867165628283. The reversal of 3867165628265 is 5628265617683.

It can be written as a sum of positive squares in 8 ways, for example, as 526565019904 + 3340600608361 = 725648^2 + 1827731^2 .

It is not a de Polignac number, because 3867165628265 - 2⁸ = 3867165628009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161247575 + ... + 161271555.

It is an arithmetic number, because the mean of its divisors is an integer number (290153073861).

Almost surely, 2^{3867165628265} is an apocalyptic number.

It is an amenable number.

3867165628265 is a deficient number, since it is larger than the sum of its proper divisors (775283553511).

3867165628265 is a wasteful number, since it uses less digits than its factorization.

3867165628265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35500.

The product of its digits is 174182400, while the sum is 65.

The spelling of 3867165628265 in words is "three trillion, eight hundred sixty-seven billion, one hundred sixty-five million, six hundred twenty-eight thousand, two hundred sixty-five".