28115057210 has 16 divisors (see below), whose sum is σ = 51300352296. Its totient is φ = 11091967488.

The previous prime is 28115057209. The next prime is 28115057227. The reversal of 28115057210 is 1275051182.

It can be written as a sum of positive squares in 4 ways, for example, as 27308554009 + 806503201 = 165253^2 + 28399^2 .

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 7 ways as a sum of consecutive naturals, for example, 19256159 + ... + 19257618.

Almost surely, 2^28115057210 is an apocalyptic number.

28115057210 is a deficient number, since it is larger than the sum of its proper divisors (23185295086).

28115057210 is a wasteful number, since it uses less digits than its factorization.

28115057210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38513857.

The product of its (nonzero) digits is 5600, while the sum is 32.

The spelling of 28115057210 in words is "twenty-eight billion, one hundred fifteen million, fifty-seven thousand, two hundred ten".