428741633783 has 2 divisors, whose sum is σ = 428741633784. Its totient is φ = 428741633782.

The previous prime is 428741633653. The next prime is 428741633839. The reversal of 428741633783 is 387336147824.

It is a happy number.

It is an a-pointer prime, because the next prime (428741633839) can be obtained adding 428741633783 to its sum of digits (56).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428741633783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428741633083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214370816891 + 214370816892.

It is an arithmetic number, because the mean of its divisors is an integer number (214370816892).

Almost surely, 2^428741633783 is an apocalyptic number.

428741633783 is a deficient number, since it is larger than the sum of its proper divisors (1).

428741633783 is an equidigital number, since it uses as much as digits as its factorization.

428741633783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16257024, while the sum is 56.

The spelling of 428741633783 in words is "four hundred twenty-eight billion, seven hundred forty-one million, six hundred thirty-three thousand, seven hundred eighty-three".