28575010561 has 8 divisors (see below), whose sum is σ = 28858452480. Its totient is φ = 28291684512.

The previous prime is 28575010517. The next prime is 28575010589. The reversal of 28575010561 is 16501057582.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28575010561 - 2⁷ = 28575010433 is a prime.

It is a super-2 number, since 2×28575010561² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28575010361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517461 + ... + 570013.

It is an arithmetic number, because the mean of its divisors is an integer number (3607306560).

Almost surely, 2^28575010561 is an apocalyptic number.

It is an amenable number.

28575010561 is a deficient number, since it is larger than the sum of its proper divisors (283441919).

28575010561 is a wasteful number, since it uses less digits than its factorization.

28575010561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57935.

The product of its (nonzero) digits is 84000, while the sum is 40.

The spelling of 28575010561 in words is "twenty-eight billion, five hundred seventy-five million, ten thousand, five hundred sixty-one".