2281230487765 has 4 divisors (see below), whose sum is σ = 2737476585324. Its totient is φ = 1824984390208.

The previous prime is 2281230487733. The next prime is 2281230487769. The reversal of 2281230487765 is 5677840321822.

2281230487765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1768663267921 + 512567219844 = 1329911^2 + 715938^2 .

It is a cyclic number.

It is not a de Polignac number, because 2281230487765 - 2⁵ = 2281230487733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281230487769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228123048772 + ... + 228123048781.

It is an arithmetic number, because the mean of its divisors is an integer number (684369146331).

Almost surely, 2^{2281230487765} is an apocalyptic number.

It is an amenable number.

2281230487765 is a deficient number, since it is larger than the sum of its proper divisors (456246097559).

2281230487765 is an equidigital number, since it uses as much as digits as its factorization.

2281230487765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456246097558.

The product of its (nonzero) digits is 9031680, while the sum is 55.

The spelling of 2281230487765 in words is "two trillion, two hundred eighty-one billion, two hundred thirty million, four hundred eighty-seven thousand, seven hundred sixty-five".