4528128572 has 24 divisors (see below), whose sum is σ = 8646314880. Its totient is φ = 2057834160.

The previous prime is 4528128569. The next prime is 4528128587. The reversal of 4528128572 is 2758218254.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423233 + ... + 433799.

It is an arithmetic number, because the mean of its divisors is an integer number (360263120).

Almost surely, 2^4528128572 is an apocalyptic number.

It is an amenable number.

4528128572 is a deficient number, since it is larger than the sum of its proper divisors (4118186308).

4528128572 is a wasteful number, since it uses less digits than its factorization.

4528128572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20321 (or 20319 counting only the distinct ones).

The product of its digits is 358400, while the sum is 44.

The square root of 4528128572 is about 67291.3707097723. The cubic root of 4528128572 is about 1654.3964261569.

The spelling of 4528128572 in words is "four billion, five hundred twenty-eight million, one hundred twenty-eight thousand, five hundred seventy-two".