20008683771009 has 16 divisors (see below), whose sum is σ = 27057405836160. Its totient is φ = 13149589483520.

The previous prime is 20008683771007. The next prime is 20008683771061. The reversal of 20008683771009 is 90017738680002.

It is a cyclic number.

It is not a de Polignac number, because 20008683771009 - 2¹ = 20008683771007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20008683771007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4227114 + ... + 7608275.

It is an arithmetic number, because the mean of its divisors is an integer number (1691087864760).

Almost surely, 2^{20008683771009} is an apocalyptic number.

It is an amenable number.

20008683771009 is a deficient number, since it is larger than the sum of its proper divisors (7048722065151).

20008683771009 is a wasteful number, since it uses less digits than its factorization.

20008683771009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11843400.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 20008683771009 in words is "twenty trillion, eight billion, six hundred eighty-three million, seven hundred seventy-one thousand, nine".