1779485663 has 2 divisors, whose sum is σ = 1779485664. Its totient is φ = 1779485662.

The previous prime is 1779485581. The next prime is 1779485677. The reversal of 1779485663 is 3665849771.

It is a strong prime.

It is an emirp because it is prime and its reverse (3665849771) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1779485663 - 2¹⁶ = 1779420127 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1779485599 and 1779485608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1779485563) 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, 889742831 + 889742832.

It is an arithmetic number, because the mean of its divisors is an integer number (889742832).

Almost surely, 2^1779485663 is an apocalyptic number.

1779485663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1779485663 is an equidigital number, since it uses as much as digits as its factorization.

1779485663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 56.

The square root of 1779485663 is about 42183.9503010327. The cubic root of 1779485663 is about 1211.8015335710.

The spelling of 1779485663 in words is "one billion, seven hundred seventy-nine million, four hundred eighty-five thousand, six hundred sixty-three".