20872349104229 has 16 divisors (see below), whose sum is σ = 24440254640256. Its totient is φ = 17451133689600.

The previous prime is 20872349104171. The next prime is 20872349104241. The reversal of 20872349104229 is 92240194327802.

It is a cyclic number.

It is not a de Polignac number, because 20872349104229 - 2⁸ = 20872349103973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20872349104829) 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, 4827227 + ... + 8065160.

It is an arithmetic number, because the mean of its divisors is an integer number (1527515915016).

Almost surely, 2^{20872349104229} is an apocalyptic number.

It is an amenable number.

20872349104229 is a deficient number, since it is larger than the sum of its proper divisors (3567905536027).

20872349104229 is a wasteful number, since it uses less digits than its factorization.

20872349104229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12898076.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 20872349104229 in words is "twenty trillion, eight hundred seventy-two billion, three hundred forty-nine million, one hundred four thousand, two hundred twenty-nine".