2069409039685 has 8 divisors (see below), whose sum is σ = 2674313220600. Its totient is φ = 1528178983104.

The previous prime is 2069409039683. The next prime is 2069409039749. The reversal of 2069409039685 is 5869309049602.

It can be written as a sum of positive squares in 4 ways, for example, as 447744324769 + 1621664714916 = 669137^2 + 1273446^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2069409039685 - 2¹ = 2069409039683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2069409039683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15918531010 + ... + 15918531139.

It is an arithmetic number, because the mean of its divisors is an integer number (334289152575).

Almost surely, 2^{2069409039685} is an apocalyptic number.

It is an amenable number.

2069409039685 is a deficient number, since it is larger than the sum of its proper divisors (604904180915).

2069409039685 is a wasteful number, since it uses less digits than its factorization.

2069409039685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31837062167.

The product of its (nonzero) digits is 25194240, while the sum is 61.

The spelling of 2069409039685 in words is "two trillion, sixty-nine billion, four hundred nine million, thirty-nine thousand, six hundred eighty-five".