28799316818 has 8 divisors (see below), whose sum is σ = 44366515212. Its totient is φ = 14010478416.

The previous prime is 28799316773. The next prime is 28799316827. The reversal of 28799316818 is 81861399782.

It can be written as a sum of positive squares in 2 ways, for example, as 22434947089 + 6364369729 = 149783^2 + 79777^2 .

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194589905 + ... + 194590052.

Almost surely, 2^28799316818 is an apocalyptic number.

28799316818 is a deficient number, since it is larger than the sum of its proper divisors (15567198394).

28799316818 is a wasteful number, since it uses less digits than its factorization.

28799316818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389179996.

The product of its digits is 10450944, while the sum is 62.

The spelling of 28799316818 in words is "twenty-eight billion, seven hundred ninety-nine million, three hundred sixteen thousand, eight hundred eighteen".