28208002898 has 8 divisors (see below), whose sum is σ = 42345142092. Its totient is φ = 14092955536.

The previous prime is 28208002883. The next prime is 28208002919. The reversal of 28208002898 is 89820080282.

It can be written as a sum of positive squares in 2 ways, for example, as 26363042689 + 1844960209 = 162367^2 + 42953^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5519765 + ... + 5524872.

Almost surely, 2^28208002898 is an apocalyptic number.

28208002898 is a deficient number, since it is larger than the sum of its proper divisors (14137139194).

28208002898 is a wasteful number, since it uses less digits than its factorization.

28208002898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11045916.

The product of its (nonzero) digits is 294912, while the sum is 47.

The spelling of 28208002898 in words is "twenty-eight billion, two hundred eight million, two thousand, eight hundred ninety-eight".