428543517573 has 24 divisors (see below), whose sum is σ = 646525226880. Its totient is φ = 273018350880.

The previous prime is 428543517569. The next prime is 428543517617. The reversal of 428543517573 is 375715345824.

428543517573 is a `hidden beast` number, since 4 + 2 + 8 + 54 + 3 + 5 + 17 + 573 = 666.

It is not a de Polignac number, because 428543517573 - 2² = 428543517569 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428543517173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 747033 + ... + 1189598.

It is an arithmetic number, because the mean of its divisors is an integer number (26938551120).

Almost surely, 2^428543517573 is an apocalyptic number.

It is an amenable number.

428543517573 is a deficient number, since it is larger than the sum of its proper divisors (217981709307).

428543517573 is a wasteful number, since it uses less digits than its factorization.

428543517573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937729 (or 1937726 counting only the distinct ones).

The product of its digits is 14112000, while the sum is 54.

The spelling of 428543517573 in words is "four hundred twenty-eight billion, five hundred forty-three million, five hundred seventeen thousand, five hundred seventy-three".