3688791769 has 16 divisors (see below), whose sum is σ = 4004456400. Its totient is φ = 3377799936.

The previous prime is 3688791751. The next prime is 3688791779. The reversal of 3688791769 is 9671978863.

It can be written as a sum of positive squares in 8 ways, for example, as 1539542169 + 2149249600 = 39237^2 + 46360^2 .

It is a cyclic number.

It is not a de Polignac number, because 3688791769 - 2²⁷ = 3554574041 is a prime.

It is a super-2 number, since 2×3688791769² = 27214369430084298722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3688791769.

It is not an unprimeable number, because it can be changed into a prime (3688791709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 870147 + ... + 874375.

It is an arithmetic number, because the mean of its divisors is an integer number (250278525).

Almost surely, 2^3688791769 is an apocalyptic number.

It is an amenable number.

3688791769 is a deficient number, since it is larger than the sum of its proper divisors (315664631).

3688791769 is a wasteful number, since it uses less digits than its factorization.

3688791769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4764.

The product of its digits is 27433728, while the sum is 64.

The square root of 3688791769 is about 60735.4243337445. The cubic root of 3688791769 is about 1545.1170327799.

The spelling of 3688791769 in words is "three billion, six hundred eighty-eight million, seven hundred ninety-one thousand, seven hundred sixty-nine".