10605778489 has 2 divisors, whose sum is σ = 10605778490. Its totient is φ = 10605778488.

The previous prime is 10605778459. The next prime is 10605778507. The reversal of 10605778489 is 98487750601.

10605778489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7389981225 + 3215797264 = 85965^2 + 56708^2 .

It is an emirp because it is prime and its reverse (98487750601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10605778489 - 2⁹ = 10605777977 is a prime.

It is a super-2 number, since 2×10605778489² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10605778409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5302889244 + 5302889245.

It is an arithmetic number, because the mean of its divisors is an integer number (5302889245).

Almost surely, 2^10605778489 is an apocalyptic number.

It is an amenable number.

10605778489 is a deficient number, since it is larger than the sum of its proper divisors (1).

10605778489 is an equidigital number, since it uses as much as digits as its factorization.

10605778489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 10605778489 in words is "ten billion, six hundred five million, seven hundred seventy-eight thousand, four hundred eighty-nine".