3963877475965 has 16 divisors (see below), whose sum is σ = 5414687968896. Its totient is φ = 2757479982400.

The previous prime is 3963877475951. The next prime is 3963877475969. The reversal of 3963877475965 is 5695747783693.

It is not a de Polignac number, because 3963877475965 - 2¹¹ = 3963877473917 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 (3963877475969) 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, 1566748726 + ... + 1566751255.

It is an arithmetic number, because the mean of its divisors is an integer number (338417998056).

Almost surely, 2^{3963877475965} is an apocalyptic number.

It is an amenable number.

3963877475965 is a deficient number, since it is larger than the sum of its proper divisors (1450810492931).

3963877475965 is a wasteful number, since it uses less digits than its factorization.

3963877475965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133500020.

The product of its digits is 7201353600, while the sum is 79.

The spelling of 3963877475965 in words is "three trillion, nine hundred sixty-three billion, eight hundred seventy-seven million, four hundred seventy-five thousand, nine hundred sixty-five".