20863668425041 has 8 divisors (see below), whose sum is σ = 22468640710824. Its totient is φ = 19258706812800.

The previous prime is 20863668424999. The next prime is 20863668425053. The reversal of 20863668425041 is 14052486636802.

It can be written as a sum of positive squares in 4 ways, for example, as 12358740250000 + 8504928175041 = 3515500^2 + 2916321^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-20863668425041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20863668425141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1650285 + ... + 6667141.

It is an arithmetic number, because the mean of its divisors is an integer number (2808580088853).

Almost surely, 2^{20863668425041} is an apocalyptic number.

It is an amenable number.

20863668425041 is a deficient number, since it is larger than the sum of its proper divisors (1604972285783).

20863668425041 is a wasteful number, since it uses less digits than its factorization.

20863668425041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5336771.

The product of its (nonzero) digits is 13271040, while the sum is 55.

The spelling of 20863668425041 in words is "twenty trillion, eight hundred sixty-three billion, six hundred sixty-eight million, four hundred twenty-five thousand, forty-one".