428175217002 has 32 divisors (see below), whose sum is σ = 922260713472. Its totient is φ = 131740910784.

The previous prime is 428175216983. The next prime is 428175217051. The reversal of 428175217002 is 200712571824.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2124823 + ... + 2317589.

It is an arithmetic number, because the mean of its divisors is an integer number (28820647296).

Almost surely, 2^428175217002 is an apocalyptic number.

428175217002 is an abundant number, since it is smaller than the sum of its proper divisors (494085496470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428175217002 is a wasteful number, since it uses less digits than its factorization.

428175217002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221262.

The product of its (nonzero) digits is 62720, while the sum is 39.

Adding to 428175217002 its reverse (200712571824), we get a palindrome (628887788826).

The spelling of 428175217002 in words is "four hundred twenty-eight billion, one hundred seventy-five million, two hundred seventeen thousand, two".