3655802785069 has 12 divisors (see below), whose sum is σ = 3814211283168. Its totient is φ = 3503525280120.

The previous prime is 3655802785051. The next prime is 3655802785247. The reversal of 3655802785069 is 9605872085563.

It is not a de Polignac number, because 3655802785069 - 2³¹ = 3653655301421 is a prime.

It is a super-2 number, since 2×3655802785069² (a number of 26 digits) 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 3655802785069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3655802785769) 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 11 ways as a sum of consecutive naturals, for example, 18367839 + ... + 18565804.

It is an arithmetic number, because the mean of its divisors is an integer number (317850940264).

Almost surely, 2^{3655802785069} is an apocalyptic number.

It is an amenable number.

3655802785069 is a deficient number, since it is larger than the sum of its proper divisors (158408498099).

3655802785069 is a wasteful number, since it uses less digits than its factorization.

3655802785069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36933808 (or 36933777 counting only the distinct ones).

The product of its (nonzero) digits is 108864000, while the sum is 64.

The spelling of 3655802785069 in words is "three trillion, six hundred fifty-five billion, eight hundred two million, seven hundred eighty-five thousand, sixty-nine".