28805414399918 has 16 divisors (see below), whose sum is σ = 46532306942016. Its totient is φ = 13294668451680.

The previous prime is 28805414399917. The next prime is 28805414400011. The reversal of 28805414399918 is 81999341450882.

It is a super-3 number, since 3×28805414399918³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28805414399917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3187046 + ... + 8232137.

It is an arithmetic number, because the mean of its divisors is an integer number (2908269183876).

Almost surely, 2^{28805414399918} is an apocalyptic number.

28805414399918 is a deficient number, since it is larger than the sum of its proper divisors (17726892542098).

28805414399918 is a wasteful number, since it uses less digits than its factorization.

28805414399918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11516219.

The product of its (nonzero) digits is 179159040, while the sum is 71.

The spelling of 28805414399918 in words is "twenty-eight trillion, eight hundred five billion, four hundred fourteen million, three hundred ninety-nine thousand, nine hundred eighteen".