3865033268405 has 16 divisors (see below), whose sum is σ = 4648419667584. Its totient is φ = 3085107708480.

The previous prime is 3865033268389. The next prime is 3865033268407. The reversal of 3865033268405 is 5048623305683.

It is not a de Polignac number, because 3865033268405 - 2⁴ = 3865033268389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3865033268407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39419552 + ... + 39517478.

It is an arithmetic number, because the mean of its divisors is an integer number (290526229224).

Almost surely, 2^{3865033268405} is an apocalyptic number.

It is an amenable number.

3865033268405 is a deficient number, since it is larger than the sum of its proper divisors (783386399179).

3865033268405 is a wasteful number, since it uses less digits than its factorization.

3865033268405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115516.

The product of its (nonzero) digits is 12441600, while the sum is 53.

The spelling of 3865033268405 in words is "three trillion, eight hundred sixty-five billion, thirty-three million, two hundred sixty-eight thousand, four hundred five".