3681716568 has 64 divisors (see below), whose sum is σ = 9289452000. Its totient is φ = 1215931392.

The previous prime is 3681716567. The next prime is 3681716609. The reversal of 3681716568 is 8656171863.

3681716568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3681716568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3681716567) 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, 1539918 + ... + 1542306.

Almost surely, 2^3681716568 is an apocalyptic number.

It is an amenable number.

3681716568 is an abundant number, since it is smaller than the sum of its proper divisors (5607735432).

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

3681716568 is a wasteful number, since it uses less digits than its factorization.

3681716568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964 (or 2960 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 3681716568 is about 60677.1502956426. The cubic root of 3681716568 is about 1544.1285419663.

The spelling of 3681716568 in words is "three billion, six hundred eighty-one million, seven hundred sixteen thousand, five hundred sixty-eight".