3960405492605 has 16 divisors (see below), whose sum is σ = 4798751588400. Its totient is φ = 3137513356800.

The previous prime is 3960405492601. The next prime is 3960405492623. The reversal of 3960405492605 is 5062945040693.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 446572764121 + 3513832728484 = 668261^2 + 1874522^2 .

It is not a de Polignac number, because 3960405492605 - 2² = 3960405492601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3960405492601) 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 15 ways as a sum of consecutive naturals, for example, 1035890 + ... + 2998979.

It is an arithmetic number, because the mean of its divisors is an integer number (299921974275).

Almost surely, 2^{3960405492605} is an apocalyptic number.

It is an amenable number.

3960405492605 is a deficient number, since it is larger than the sum of its proper divisors (838346095795).

3960405492605 is a wasteful number, since it uses less digits than its factorization.

3960405492605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4036784.

The product of its (nonzero) digits is 6998400, while the sum is 53.

The spelling of 3960405492605 in words is "three trillion, nine hundred sixty billion, four hundred five million, four hundred ninety-two thousand, six hundred five".