100806720289 has 16 divisors (see below), whose sum is σ = 110237844096. Its totient is φ = 91420358400.

The previous prime is 100806720277. The next prime is 100806720293. The reversal of 100806720289 is 982027608001.

It is a cyclic number.

It is not a de Polignac number, because 100806720289 - 2⁵ = 100806720257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100806720269) 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, 8129284 + ... + 8141674.

It is an arithmetic number, because the mean of its divisors is an integer number (6889865256).

Almost surely, 2^100806720289 is an apocalyptic number.

It is an amenable number.

100806720289 is a deficient number, since it is larger than the sum of its proper divisors (9431123807).

100806720289 is a wasteful number, since it uses less digits than its factorization.

100806720289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14136.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 100806720289 in words is "one hundred billion, eight hundred six million, seven hundred twenty thousand, two hundred eighty-nine".