28805040078 has 8 divisors (see below), whose sum is σ = 57610080168. Its totient is φ = 9601680024.

The previous prime is 28805040059. The next prime is 28805040083. The reversal of 28805040078 is 87004050882.

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

28805040078 is an admirable number.

It is a congruent number.

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, 2400420001 + ... + 2400420012.

It is an arithmetic number, because the mean of its divisors is an integer number (7201260021).

Almost surely, 2^28805040078 is an apocalyptic number.

28805040078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28805040078 is a wasteful number, since it uses less digits than its factorization.

28805040078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4800840018.

The product of its (nonzero) digits is 143360, while the sum is 42.

The spelling of 28805040078 in words is "twenty-eight billion, eight hundred five million, forty thousand, seventy-eight".