28575730459 has 4 divisors (see below), whose sum is σ = 28587526416. Its totient is φ = 28563934504.

The previous prime is 28575730399. The next prime is 28575730489. The reversal of 28575730459 is 95403757582.

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 28575730459 - 2²³ = 28567341851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28575730489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5894344 + ... + 5899189.

It is an arithmetic number, because the mean of its divisors is an integer number (7146881604).

Almost surely, 2^28575730459 is an apocalyptic number.

28575730459 is a deficient number, since it is larger than the sum of its proper divisors (11795957).

28575730459 is a wasteful number, since it uses less digits than its factorization.

28575730459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11795956.

The product of its (nonzero) digits is 10584000, while the sum is 55.

The spelling of 28575730459 in words is "twenty-eight billion, five hundred seventy-five million, seven hundred thirty thousand, four hundred fifty-nine".