428872170223 has 32 divisors (see below), whose sum is σ = 525601681920. Its totient is φ = 341566709760.

The previous prime is 428872170191. The next prime is 428872170229. The reversal of 428872170223 is 322071278824.

It is a cyclic number.

It is not a de Polignac number, because 428872170223 - 2⁵ = 428872170191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428872170229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14395663 + ... + 14425423.

It is an arithmetic number, because the mean of its divisors is an integer number (16425052560).

Almost surely, 2^428872170223 is an apocalyptic number.

428872170223 is a deficient number, since it is larger than the sum of its proper divisors (96729511697).

428872170223 is a wasteful number, since it uses less digits than its factorization.

428872170223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31327.

The product of its (nonzero) digits is 602112, while the sum is 46.

The spelling of 428872170223 in words is "four hundred twenty-eight billion, eight hundred seventy-two million, one hundred seventy thousand, two hundred twenty-three".