28586287204 has 12 divisors (see below), whose sum is σ = 50030162028. Its totient is φ = 14291955200.

The previous prime is 28586287193. The next prime is 28586287243. The reversal of 28586287204 is 40278268582.

It can be written as a sum of positive squares in 2 ways, for example, as 24289222500 + 4297064704 = 155850^2 + 65552^2 .

It is a super-2 number, since 2×28586287204² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241837 + ... + 340084.

It is an arithmetic number, because the mean of its divisors is an integer number (4169180169).

Almost surely, 2^28586287204 is an apocalyptic number.

It is an amenable number.

28586287204 is a deficient number, since it is larger than the sum of its proper divisors (21443874824).

28586287204 is a wasteful number, since it uses less digits than its factorization.

28586287204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594206 (or 594204 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 52.

The spelling of 28586287204 in words is "twenty-eight billion, five hundred eighty-six million, two hundred eighty-seven thousand, two hundred four".