428175217003 has 4 divisors (see below), whose sum is σ = 450710754760. Its totient is φ = 405639679248.

The previous prime is 428175216983. The next prime is 428175217051. The reversal of 428175217003 is 300712571824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428175217003 is a prime.

It is a super-2 number, since 2×428175217003² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428170217003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11267768850 + ... + 11267768887.

It is an arithmetic number, because the mean of its divisors is an integer number (112677688690).

Almost surely, 2^428175217003 is an apocalyptic number.

428175217003 is a deficient number, since it is larger than the sum of its proper divisors (22535537757).

428175217003 is a wasteful number, since it uses less digits than its factorization.

428175217003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22535537756.

The product of its (nonzero) digits is 94080, while the sum is 40.

Adding to 428175217003 its reverse (300712571824), we get a palindrome (728887788827).

The spelling of 428175217003 in words is "four hundred twenty-eight billion, one hundred seventy-five million, two hundred seventeen thousand, three".