28579575004 has 12 divisors (see below), whose sum is σ = 50208866064. Its totient is φ = 14234184704.

The previous prime is 28579575001. The next prime is 28579575019. The reversal of 28579575004 is 40057597582.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28579575001) 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, 13899544 + ... + 13901599.

It is an arithmetic number, because the mean of its divisors is an integer number (4184072172).

Almost surely, 2^28579575004 is an apocalyptic number.

It is an amenable number.

28579575004 is a deficient number, since it is larger than the sum of its proper divisors (21629291060).

28579575004 is a wasteful number, since it uses less digits than its factorization.

28579575004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27801404 (or 27801402 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 52.

The spelling of 28579575004 in words is "twenty-eight billion, five hundred seventy-nine million, five hundred seventy-five thousand, four".