1429778563 has 2 divisors, whose sum is σ = 1429778564. Its totient is φ = 1429778562.

The previous prime is 1429778551. The next prime is 1429778569. The reversal of 1429778563 is 3658779241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1429778563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1429778563.

It is not a weakly prime, because it can be changed into another prime (1429778569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714889281 + 714889282.

It is an arithmetic number, because the mean of its divisors is an integer number (714889282).

Almost surely, 2^1429778563 is an apocalyptic number.

1429778563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1429778563 is an equidigital number, since it uses as much as digits as its factorization.

1429778563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 52.

The square root of 1429778563 is about 37812.4128164284. The cubic root of 1429778563 is about 1126.5650154060.

It can be divided in two parts, 1429778 and 563, that added together give a palindrome (1430341).

The spelling of 1429778563 in words is "one billion, four hundred twenty-nine million, seven hundred seventy-eight thousand, five hundred sixty-three".