428589417678343 has 4 divisors (see below), whose sum is σ = 435853645096680. Its totient is φ = 421325190260008.

The previous prime is 428589417678313. The next prime is 428589417678349. The reversal of 428589417678343 is 343876714985824.

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

It is a cyclic number.

It is not a de Polignac number, because 428589417678343 - 2²⁹ = 428588880807431 is a prime.

It is a super-2 number, since 2×428589417678343² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428589417678349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3632113709080 + ... + 3632113709197.

It is an arithmetic number, because the mean of its divisors is an integer number (108963411274170).

Almost surely, 2^{428589417678343} is an apocalyptic number.

428589417678343 is a deficient number, since it is larger than the sum of its proper divisors (7264227418337).

428589417678343 is an equidigital number, since it uses as much as digits as its factorization.

428589417678343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7264227418336.

The product of its digits is 7803371520, while the sum is 79.

The spelling of 428589417678343 in words is "four hundred twenty-eight trillion, five hundred eighty-nine billion, four hundred seventeen million, six hundred seventy-eight thousand, three hundred forty-three".