20306286820841 has 8 divisors (see below), whose sum is σ = 24428615724480. Its totient is φ = 16489315613808.

The previous prime is 20306286820817. The next prime is 20306286820849. The reversal of 20306286820841 is 14802868260302.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20306286820841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20306286820841.

It is not an unprimeable number, because it can be changed into a prime (20306286820849) 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, 76339424006 + ... + 76339424271.

It is an arithmetic number, because the mean of its divisors is an integer number (3053576965560).

Almost surely, 2^{20306286820841} is an apocalyptic number.

It is an amenable number.

20306286820841 is a deficient number, since it is larger than the sum of its proper divisors (4122328903639).

20306286820841 is a wasteful number, since it uses less digits than its factorization.

20306286820841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152678848303.

The product of its (nonzero) digits is 1769472, while the sum is 50.

The spelling of 20306286820841 in words is "twenty trillion, three hundred six billion, two hundred eighty-six million, eight hundred twenty thousand, eight hundred forty-one".