20846452859443 has 2 divisors, whose sum is σ = 20846452859444. Its totient is φ = 20846452859442.

The previous prime is 20846452859431. The next prime is 20846452859473. The reversal of 20846452859443 is 34495825464802.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20846452859443 - 2⁵ = 20846452859411 is a prime.

It is a super-2 number, since 2×20846452859443² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20846452859473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10423226429721 + 10423226429722.

It is an arithmetic number, because the mean of its divisors is an integer number (10423226429722).

Almost surely, 2^{20846452859443} is an apocalyptic number.

20846452859443 is a deficient number, since it is larger than the sum of its proper divisors (1).

20846452859443 is an equidigital number, since it uses as much as digits as its factorization.

20846452859443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 265420800, while the sum is 64.

The spelling of 20846452859443 in words is "twenty trillion, eight hundred forty-six billion, four hundred fifty-two million, eight hundred fifty-nine thousand, four hundred forty-three".