20358791900609 has 16 divisors (see below), whose sum is σ = 20505138481152. Its totient is φ = 20212978355328.

The previous prime is 20358791900599. The next prime is 20358791900611. The reversal of 20358791900609 is 90600919785302.

It is a cyclic number.

It is not a de Polignac number, because 20358791900609 - 2⁴⁰ = 19259280272833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20358701900609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349520042 + ... + 349578284.

It is an arithmetic number, because the mean of its divisors is an integer number (1281571155072).

Almost surely, 2^{20358791900609} is an apocalyptic number.

It is an amenable number.

20358791900609 is a deficient number, since it is larger than the sum of its proper divisors (146346580543).

20358791900609 is a wasteful number, since it uses less digits than its factorization.

20358791900609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62776.

The product of its (nonzero) digits is 7348320, while the sum is 59.

The spelling of 20358791900609 in words is "twenty trillion, three hundred fifty-eight billion, seven hundred ninety-one million, nine hundred thousand, six hundred nine".