428785503103 has 6 divisors (see below), whose sum is σ = 448238910224. Its totient is φ = 410142654636.

The previous prime is 428785503077. The next prime is 428785503109. The reversal of 428785503103 is 301305587824.

It is not a de Polignac number, because 428785503103 - 2²⁹ = 428248632191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428785503109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 405278775 + ... + 405279832.

Almost surely, 2^428785503103 is an apocalyptic number.

428785503103 is a deficient number, since it is larger than the sum of its proper divisors (19453407121).

428785503103 is an equidigital number, since it uses as much as digits as its factorization.

428785503103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810558653 (or 810558630 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 428785503103 in words is "four hundred twenty-eight billion, seven hundred eighty-five million, five hundred three thousand, one hundred three".