28000280550026 has 4 divisors (see below), whose sum is σ = 42000420825042. Its totient is φ = 14000140275012.

The previous prime is 28000280549957. The next prime is 28000280550037. The reversal of 28000280550026 is 62005508200082.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17329611523225 + 10670669026801 = 4162885^2 + 3266599^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7000070137505 + ... + 7000070137508.

Almost surely, 2^{28000280550026} is an apocalyptic number.

28000280550026 is a deficient number, since it is larger than the sum of its proper divisors (14000140275016).

28000280550026 is a wasteful number, since it uses less digits than its factorization.

28000280550026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14000140275015.

The product of its (nonzero) digits is 76800, while the sum is 38.

The spelling of 28000280550026 in words is "twenty-eight trillion, two hundred eighty million, five hundred fifty thousand, twenty-six".