428765683607 has 2 divisors, whose sum is σ = 428765683608. Its totient is φ = 428765683606.

The previous prime is 428765683579. The next prime is 428765683657. The reversal of 428765683607 is 706386567824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428765683607 - 2²⁰ = 428764635031 is a prime.

It is a super-3 number, since 3×428765683607³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 428765683607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428765683657) 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, 214382841803 + 214382841804.

It is an arithmetic number, because the mean of its divisors is an integer number (214382841804).

Almost surely, 2^428765683607 is an apocalyptic number.

428765683607 is a deficient number, since it is larger than the sum of its proper divisors (1).

428765683607 is an equidigital number, since it uses as much as digits as its factorization.

428765683607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81285120, while the sum is 62.

The spelling of 428765683607 in words is "four hundred twenty-eight billion, seven hundred sixty-five million, six hundred eighty-three thousand, six hundred seven".