4131568564 has 6 divisors (see below), whose sum is σ = 7230244994. Its totient is φ = 2065784280.

The previous prime is 4131568561. The next prime is 4131568621. The reversal of 4131568564 is 4658651314.

It can be written as a sum of positive squares in only one way, i.e., 3351483664 + 780084900 = 57892^2 + 27930^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4131568564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4131568561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 516446067 + ... + 516446074.

Almost surely, 2^4131568564 is an apocalyptic number.

It is an amenable number.

4131568564 is a deficient number, since it is larger than the sum of its proper divisors (3098676430).

4131568564 is a wasteful number, since it uses less digits than its factorization.

4131568564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032892145 (or 1032892143 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The square root of 4131568564 is about 64277.2787538489. The cubic root of 4131568564 is about 1604.6179820156.

The spelling of 4131568564 in words is "four billion, one hundred thirty-one million, five hundred sixty-eight thousand, five hundred sixty-four".