428341759987 has 2 divisors, whose sum is σ = 428341759988. Its totient is φ = 428341759986.

The previous prime is 428341759969. The next prime is 428341760017. The reversal of 428341759987 is 789957143824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428341759987 - 2²³ = 428333371379 is a prime.

It is not a weakly prime, because it can be changed into another prime (428341759927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214170879993 + 214170879994.

It is an arithmetic number, because the mean of its divisors is an integer number (214170879994).

Almost surely, 2^428341759987 is an apocalyptic number.

428341759987 is a deficient number, since it is larger than the sum of its proper divisors (1).

428341759987 is an equidigital number, since it uses as much as digits as its factorization.

428341759987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 121927680, while the sum is 67.

The spelling of 428341759987 in words is "four hundred twenty-eight billion, three hundred forty-one million, seven hundred fifty-nine thousand, nine hundred eighty-seven".