428555439043 has 2 divisors, whose sum is σ = 428555439044. Its totient is φ = 428555439042.

The previous prime is 428555438989. The next prime is 428555439077. The reversal of 428555439043 is 340934555824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 428555439043 - 2¹³ = 428555430851 is a prime.

It is not a weakly prime, because it can be changed into another prime (428555439643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214277719521 + 214277719522.

It is an arithmetic number, because the mean of its divisors is an integer number (214277719522).

Almost surely, 2^428555439043 is an apocalyptic number.

428555439043 is a deficient number, since it is larger than the sum of its proper divisors (1).

428555439043 is an equidigital number, since it uses as much as digits as its factorization.

428555439043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368000, while the sum is 52.

The spelling of 428555439043 in words is "four hundred twenty-eight billion, five hundred fifty-five million, four hundred thirty-nine thousand, forty-three".