28362785345 has 8 divisors (see below), whose sum is σ = 34039478760. Its totient is φ = 22687470720.

The previous prime is 28362785293. The next prime is 28362785351. The reversal of 28362785345 is 54358726382.

It can be written as a sum of positive squares in 4 ways, for example, as 1409026369 + 26953758976 = 37537^2 + 164176^2 .

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

It is not a de Polignac number, because 28362785345 - 2¹⁰ = 28362784321 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298886 + ... + 382175.

It is an arithmetic number, because the mean of its divisors is an integer number (4254934845).

Almost surely, 2^28362785345 is an apocalyptic number.

It is an amenable number.

28362785345 is a deficient number, since it is larger than the sum of its proper divisors (5676693415).

28362785345 is an equidigital number, since it uses as much as digits as its factorization.

28362785345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689395.

The product of its digits is 9676800, while the sum is 53.

The spelling of 28362785345 in words is "twenty-eight billion, three hundred sixty-two million, seven hundred eighty-five thousand, three hundred forty-five".