28585684706 has 8 divisors (see below), whose sum is σ = 43465904364. Its totient is φ = 14097049920.

The previous prime is 28585684649. The next prime is 28585684723. The reversal of 28585684706 is 60748658582.

It is a happy number.

28585684706 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 25347505681 + 3238179025 = 159209^2 + 56905^2 .

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

It is a super-2 number, since 2×28585684706² (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, 97896035 + ... + 97896326.

Almost surely, 2^28585684706 is an apocalyptic number.

28585684706 is a deficient number, since it is larger than the sum of its proper divisors (14880219658).

28585684706 is a wasteful number, since it uses less digits than its factorization.

28585684706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195792436.

The product of its (nonzero) digits is 25804800, while the sum is 59.

The spelling of 28585684706 in words is "twenty-eight billion, five hundred eighty-five million, six hundred eighty-four thousand, seven hundred six".