28656259282 has 24 divisors (see below), whose sum is σ = 50014099836. Its totient is φ = 12278343168.

The previous prime is 28656259277. The next prime is 28656259283. The reversal of 28656259282 is 28295265682.

It can be written as a sum of positive squares in 2 ways, for example, as 28372370481 + 283888801 = 168441^2 + 16849^2 .

It is a super-2 number, since 2×28656259282² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28656259283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 409878 + ... + 474670.

Almost surely, 2^28656259282 is an apocalyptic number.

28656259282 is a deficient number, since it is larger than the sum of its proper divisors (21357840554).

28656259282 is a wasteful number, since it uses less digits than its factorization.

28656259282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69322 (or 69315 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 55.

The spelling of 28656259282 in words is "twenty-eight billion, six hundred fifty-six million, two hundred fifty-nine thousand, two hundred eighty-two".