3908505040065 has 24 divisors (see below), whose sum is σ = 6782934083328. Its totient is φ = 2082015401760.

The previous prime is 3908505040057. The next prime is 3908505040067. The reversal of 3908505040065 is 5600405058093.

3908505040065 is a `hidden beast` number, since 3 + 9 + 0 + 85 + 0 + 504 + 0 + 0 + 65 = 666.

It is not a de Polignac number, because 3908505040065 - 2³ = 3908505040057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3908505040065.

It is not an unprimeable number, because it can be changed into a prime (3908505040067) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 52475281 + ... + 52549710.

It is an arithmetic number, because the mean of its divisors is an integer number (282622253472).

Almost surely, 2^{3908505040065} is an apocalyptic number.

It is an amenable number.

3908505040065 is a deficient number, since it is larger than the sum of its proper divisors (2874429043263).

3908505040065 is a wasteful number, since it uses less digits than its factorization.

3908505040065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105025829 (or 105025826 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 3908505040065 in words is "three trillion, nine hundred eight billion, five hundred five million, forty thousand, sixty-five".