20460320833853 has 2 divisors, whose sum is σ = 20460320833854. Its totient is φ = 20460320833852.

The previous prime is 20460320833829. The next prime is 20460320833867. The reversal of 20460320833853 is 35833802306402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17494837078489 + 2965483755364 = 4182683^2 + 1722058^2 .

It is a cyclic number.

It is not a de Polignac number, because 20460320833853 - 2²⁴ = 20460304056637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20460320833798 and 20460320833807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20460320833453) 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 as a sum of consecutive naturals, namely, 10230160416926 + 10230160416927.

It is an arithmetic number, because the mean of its divisors is an integer number (10230160416927).

Almost surely, 2^{20460320833853} is an apocalyptic number.

It is an amenable number.

20460320833853 is a deficient number, since it is larger than the sum of its proper divisors (1).

20460320833853 is an equidigital number, since it uses as much as digits as its factorization.

20460320833853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2488320, while the sum is 47.

The spelling of 20460320833853 in words is "twenty trillion, four hundred sixty billion, three hundred twenty million, eight hundred thirty-three thousand, eight hundred fifty-three".