20813608424129 has 8 divisors (see below), whose sum is σ = 21533955970560. Its totient is φ = 20096319679200.

The previous prime is 20813608424113. The next prime is 20813608424173. The reversal of 20813608424129 is 92142480631802.

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

It is a cyclic number.

It is not a de Polignac number, because 20813608424129 - 2⁴ = 20813608424113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20813608444129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764686532 + ... + 764713749.

It is an arithmetic number, because the mean of its divisors is an integer number (2691744496320).

Almost surely, 2^{20813608424129} is an apocalyptic number.

It is an amenable number.

20813608424129 is a deficient number, since it is larger than the sum of its proper divisors (720347546431).

20813608424129 is a wasteful number, since it uses less digits than its factorization.

20813608424129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529400751.

The product of its (nonzero) digits is 1327104, while the sum is 50.

The spelling of 20813608424129 in words is "twenty trillion, eight hundred thirteen billion, six hundred eight million, four hundred twenty-four thousand, one hundred twenty-nine".