28805414399998 has 4 divisors (see below), whose sum is σ = 43208121600000. Its totient is φ = 14402707199998.

The previous prime is 28805414399917. The next prime is 28805414400011. The reversal of 28805414399998 is 89999341450882.

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

It is a super-2 number, since 2×28805414399998² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7201353599998 + ... + 7201353600001.

It is an arithmetic number, because the mean of its divisors is an integer number (10802030400000).

Almost surely, 2^{28805414399998} is an apocalyptic number.

28805414399998 is a deficient number, since it is larger than the sum of its proper divisors (14402707200002).

28805414399998 is a wasteful number, since it uses less digits than its factorization.

28805414399998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14402707200001.

The product of its (nonzero) digits is 1612431360, while the sum is 79.

The spelling of 28805414399998 in words is "twenty-eight trillion, eight hundred five billion, four hundred fourteen million, three hundred ninety-nine thousand, nine hundred ninety-eight".