28805414399999 has 4 divisors (see below), whose sum is σ = 29734621316160. Its totient is φ = 27876207483840.

The previous prime is 28805414399917. The next prime is 28805414400011. The reversal of 28805414399999 is 99999341450882.

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

It is a cyclic number.

It is not a de Polignac number, because 28805414399999 - 2⁸ = 28805414399743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28805414399299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464603458034 + ... + 464603458095.

It is an arithmetic number, because the mean of its divisors is an integer number (7433655329040).

Almost surely, 2^{28805414399999} is an apocalyptic number.

28805414399999 is a deficient number, since it is larger than the sum of its proper divisors (929206916161).

28805414399999 is an equidigital number, since it uses as much as digits as its factorization.

28805414399999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929206916160.

The product of its (nonzero) digits is 1813985280, while the sum is 80.

The spelling of 28805414399999 in words is "twenty-eight trillion, eight hundred five billion, four hundred fourteen million, three hundred ninety-nine thousand, nine hundred ninety-nine".