28340210768 has 20 divisors (see below), whose sum is σ = 54916018260. Its totient is φ = 14168335104.

The previous prime is 28340210753. The next prime is 28340210777. The reversal of 28340210768 is 86701204382.

It can be written as a sum of positive squares in 2 ways, for example, as 27739568704 + 600642064 = 166552^2 + 24508^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26588 + ... + 239556.

It is an arithmetic number, because the mean of its divisors is an integer number (2745800913).

Almost surely, 2^28340210768 is an apocalyptic number.

It is an amenable number.

28340210768 is a deficient number, since it is larger than the sum of its proper divisors (26575807492).

28340210768 is a wasteful number, since it uses less digits than its factorization.

28340210768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221294 (or 221288 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 28340210768 in words is "twenty-eight billion, three hundred forty million, two hundred ten thousand, seven hundred sixty-eight".