20107412809 has 8 divisors (see below), whose sum is σ = 21937593600. Its totient is φ = 18277604400.

The previous prime is 20107412761. The next prime is 20107412833. The reversal of 20107412809 is 90821470102.

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

It is not a de Polignac number, because 20107412809 - 2¹⁹ = 20106888521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20107412839) 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 7 ways as a sum of consecutive naturals, for example, 26499 + ... + 202279.

It is an arithmetic number, because the mean of its divisors is an integer number (2742199200).

Almost surely, 2^20107412809 is an apocalyptic number.

It is an amenable number.

20107412809 is a deficient number, since it is larger than the sum of its proper divisors (1830180791).

20107412809 is a wasteful number, since it uses less digits than its factorization.

20107412809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186191.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 20107412809 in words is "twenty billion, one hundred seven million, four hundred twelve thousand, eight hundred nine".