10280855505785 has 4 divisors (see below), whose sum is σ = 12337026606948. Its totient is φ = 8224684404624.

The previous prime is 10280855505773. The next prime is 10280855505799. The reversal of 10280855505785 is 58750555808201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8096773503289 + 2184082002496 = 2845483^2 + 1477864^2 .

It is a cyclic number.

It is not a de Polignac number, because 10280855505785 - 2²⁴ = 10280838728569 is a prime.

It is a Duffinian 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, 1028085550574 + ... + 1028085550583.

It is an arithmetic number, because the mean of its divisors is an integer number (3084256651737).

Almost surely, 2^{10280855505785} is an apocalyptic number.

It is an amenable number.

10280855505785 is a deficient number, since it is larger than the sum of its proper divisors (2056171101163).

10280855505785 is an equidigital number, since it uses as much as digits as its factorization.

10280855505785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056171101162.

The product of its (nonzero) digits is 22400000, while the sum is 59.

The spelling of 10280855505785 in words is "ten trillion, two hundred eighty billion, eight hundred fifty-five million, five hundred five thousand, seven hundred eighty-five".