14446890581789 has 2 divisors, whose sum is σ = 14446890581790. Its totient is φ = 14446890581788.

The previous prime is 14446890581771. The next prime is 14446890581861. The reversal of 14446890581789 is 98718509864441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7517834645689 + 6929055936100 = 2741867^2 + 2632310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14446890581789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14446890581759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7223445290894 + 7223445290895.

It is an arithmetic number, because the mean of its divisors is an integer number (7223445290895).

Almost surely, 2^{14446890581789} is an apocalyptic number.

It is an amenable number.

14446890581789 is a deficient number, since it is larger than the sum of its proper divisors (1).

14446890581789 is an equidigital number, since it uses as much as digits as its factorization.

14446890581789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 557383680, while the sum is 74.

The spelling of 14446890581789 in words is "fourteen trillion, four hundred forty-six billion, eight hundred ninety million, five hundred eighty-one thousand, seven hundred eighty-nine".