1768625563 has 2 divisors, whose sum is σ = 1768625564. Its totient is φ = 1768625562.

The previous prime is 1768625491. The next prime is 1768625587. The reversal of 1768625563 is 3655268671.

It is a strong prime.

It is an emirp because it is prime and its reverse (3655268671) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1768625563 - 2¹³ = 1768617371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1768620563) 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, 884312781 + 884312782.

It is an arithmetic number, because the mean of its divisors is an integer number (884312782).

Almost surely, 2^1768625563 is an apocalyptic number.

1768625563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1768625563 is an equidigital number, since it uses as much as digits as its factorization.

1768625563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 49.

The square root of 1768625563 is about 42055.0301747603. The cubic root of 1768625563 is about 1209.3313162097.

The spelling of 1768625563 in words is "one billion, seven hundred sixty-eight million, six hundred twenty-five thousand, five hundred sixty-three".