20864124325443 has 16 divisors (see below), whose sum is σ = 32652220309760. Its totient is φ = 11600130898656.

The previous prime is 20864124325397. The next prime is 20864124325501. The reversal of 20864124325443 is 34452342146802.

It is not a de Polignac number, because 20864124325443 - 2⁹ = 20864124324931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20864124325392 and 20864124325401.

It is not an unprimeable number, because it can be changed into a prime (20864124325043) 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 15 ways as a sum of consecutive naturals, for example, 13426076653 + ... + 13426078206.

It is an arithmetic number, because the mean of its divisors is an integer number (2040763769360).

Almost surely, 2^{20864124325443} is an apocalyptic number.

20864124325443 is a deficient number, since it is larger than the sum of its proper divisors (11788095984317).

20864124325443 is a wasteful number, since it uses less digits than its factorization.

20864124325443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26852154906.

The product of its (nonzero) digits is 4423680, while the sum is 48.

The spelling of 20864124325443 in words is "twenty trillion, eight hundred sixty-four billion, one hundred twenty-four million, three hundred twenty-five thousand, four hundred forty-three".