28586813456 has 20 divisors (see below), whose sum is σ = 55499770704. Its totient is φ = 14264292000.

The previous prime is 28586813447. The next prime is 28586813461. The reversal of 28586813456 is 65431868582.

It is a super-3 number, since 3×28586813456³ (a number of 32 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

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, 1811570 + ... + 1827281.

Almost surely, 2^28586813456 is an apocalyptic number.

It is an amenable number.

28586813456 is a deficient number, since it is larger than the sum of its proper divisors (26912957248).

28586813456 is a wasteful number, since it uses less digits than its factorization.

28586813456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3639350 (or 3639344 counting only the distinct ones).

The product of its digits is 11059200, while the sum is 56.

The spelling of 28586813456 in words is "twenty-eight billion, five hundred eighty-six million, eight hundred thirteen thousand, four hundred fifty-six".