28288888282 has 8 divisors (see below), whose sum is σ = 42472158516. Its totient is φ = 14131502112.

The previous prime is 28288888261. The next prime is 28288888349.

It is a happy number.

28288888282 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 28263998161 + 24890121 = 168119^2 + 4989^2 .

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

It is a super-2 number, since 2×28288888282² (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, 6468283 + ... + 6472654.

Almost surely, 2^28288888282 is an apocalyptic number.

28288888282 is a deficient number, since it is larger than the sum of its proper divisors (14183270234).

28288888282 is a wasteful number, since it uses less digits than its factorization.

28288888282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12942032.

The product of its digits is 33554432, while the sum is 64.

The spelling of 28288888282 in words is "twenty-eight billion, two hundred eighty-eight million, eight hundred eighty-eight thousand, two hundred eighty-two".