7860135338209 has 32 divisors (see below), whose sum is σ = 9966648499200. Its totient is φ = 6020425083840.

The previous prime is 7860135338201. The next prime is 7860135338227. The reversal of 7860135338209 is 9028335310687.

It is a cyclic number.

It is not a de Polignac number, because 7860135338209 - 2³ = 7860135338201 is a prime.

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 7860135338209.

It is not an unprimeable number, because it can be changed into a prime (7860135338201) 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 31 ways as a sum of consecutive naturals, for example, 54166419 + ... + 54311335.

It is an arithmetic number, because the mean of its divisors is an integer number (311457765600).

Almost surely, 2^{7860135338209} is an apocalyptic number.

It is an amenable number.

7860135338209 is a deficient number, since it is larger than the sum of its proper divisors (2106513160991).

7860135338209 is a wasteful number, since it uses less digits than its factorization.

7860135338209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156933.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 7860135338209 in words is "seven trillion, eight hundred sixty billion, one hundred thirty-five million, three hundred thirty-eight thousand, two hundred nine".