1021768963 has 2 divisors, whose sum is σ = 1021768964. Its totient is φ = 1021768962.

The previous prime is 1021768933. The next prime is 1021768981. The reversal of 1021768963 is 3698671201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021768963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021768933) 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, 510884481 + 510884482.

It is an arithmetic number, because the mean of its divisors is an integer number (510884482).

Almost surely, 2^1021768963 is an apocalyptic number.

1021768963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021768963 is an equidigital number, since it uses as much as digits as its factorization.

1021768963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 1021768963 is about 31965.1210384068. The cubic root of 1021768963 is about 1007.2042945020.

The spelling of 1021768963 in words is "one billion, twenty-one million, seven hundred sixty-eight thousand, nine hundred sixty-three".