3954967568 has 20 divisors (see below), whose sum is σ = 7926983340. Its totient is φ = 1909294464.

The previous prime is 3954967561. The next prime is 3954967661. The reversal of 3954967568 is 8657694593.

It can be written as a sum of positive squares in 2 ways, for example, as 950612224 + 3004355344 = 30832^2 + 54812^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3954967568.

It is not an unprimeable number, because it can be changed into a prime (3954967561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4261355 + ... + 4262282.

It is an arithmetic number, because the mean of its divisors is an integer number (396349167).

Almost surely, 2^3954967568 is an apocalyptic number.

It is an amenable number.

3954967568 is an abundant number, since it is smaller than the sum of its proper divisors (3972015772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3954967568 is a wasteful number, since it uses less digits than its factorization.

3954967568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8523674 (or 8523668 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 62.

The square root of 3954967568 is about 62888.5328815993. The cubic root of 3954967568 is about 1581.4215119142.

The spelling of 3954967568 in words is "three billion, nine hundred fifty-four million, nine hundred sixty-seven thousand, five hundred sixty-eight".