20089712443 has 2 divisors, whose sum is σ = 20089712444. Its totient is φ = 20089712442.

The previous prime is 20089712417. The next prime is 20089712479. The reversal of 20089712443 is 34421798002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20089712443 - 2⁹ = 20089711931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20089712396 and 20089712405.

It is not a weakly prime, because it can be changed into another prime (20089712143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10044856221 + 10044856222.

It is an arithmetic number, because the mean of its divisors is an integer number (10044856222).

Almost surely, 2^20089712443 is an apocalyptic number.

20089712443 is a deficient number, since it is larger than the sum of its proper divisors (1).

20089712443 is an equidigital number, since it uses as much as digits as its factorization.

20089712443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 20089712443 in words is "twenty billion, eighty-nine million, seven hundred twelve thousand, four hundred forty-three".