2281781375528 has 16 divisors (see below), whose sum is σ = 4278944556000. Its totient is φ = 1140729493936.

The previous prime is 2281781375527. The next prime is 2281781375561. The reversal of 2281781375528 is 8255731871822.

It is not an unprimeable number, because it can be changed into a prime (2281781375527) 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, 20089058 + ... + 20202321.

It is an arithmetic number, because the mean of its divisors is an integer number (267434034750).

Almost surely, 2^{2281781375528} is an apocalyptic number.

It is an amenable number.

2281781375528 is a deficient number, since it is larger than the sum of its proper divisors (1997163180472).

2281781375528 is a wasteful number, since it uses less digits than its factorization.

2281781375528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40298464 (or 40298460 counting only the distinct ones).

The product of its digits is 15052800, while the sum is 59.

The spelling of 2281781375528 in words is "two trillion, two hundred eighty-one billion, seven hundred eighty-one million, three hundred seventy-five thousand, five hundred twenty-eight".