20852813673583 has 2 divisors, whose sum is σ = 20852813673584. Its totient is φ = 20852813673582.

The previous prime is 20852813673577. The next prime is 20852813673617. The reversal of 20852813673583 is 38537631825802.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20852813673583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20852813673563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10426406836791 + 10426406836792.

It is an arithmetic number, because the mean of its divisors is an integer number (10426406836792).

Almost surely, 2^{20852813673583} is an apocalyptic number.

20852813673583 is a deficient number, since it is larger than the sum of its proper divisors (1).

20852813673583 is an equidigital number, since it uses as much as digits as its factorization.

20852813673583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58060800, while the sum is 61.

The spelling of 20852813673583 in words is "twenty trillion, eight hundred fifty-two billion, eight hundred thirteen million, six hundred seventy-three thousand, five hundred eighty-three".