2285959539721 has 81 divisors (see below), whose sum is σ = 2774607958143. Its totient is φ = 1881094026240.

The previous prime is 2285959539713. The next prime is 2285959539803. The reversal of 2285959539721 is 1279359595822.

The square root of 2285959539721 is 1511939.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 1669106379721 + 616853160000 = 1291939^2 + 785400^2 .

It is not a de Polignac number, because 2285959539721 - 2³ = 2285959539713 is a prime.

It is a super-2 number, since 2×2285959539721² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2285959530721) by changing a digit.

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 80 ways as a sum of consecutive naturals, for example, 20972105815 + ... + 20972105923.

Almost surely, 2^{2285959539721} is an apocalyptic number.

2285959539721 is the 1511939-th square number.

2285959539721 is the 755970-th centered octagonal number.

It is an amenable number.

2285959539721 is a deficient number, since it is larger than the sum of its proper divisors (488648418422).

2285959539721 is an equidigital number, since it uses as much as digits as its factorization.

2285959539721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 230 counting only the distinct ones).

The product of its digits is 122472000, while the sum is 67.

The spelling of 2285959539721 in words is "two trillion, two hundred eighty-five billion, nine hundred fifty-nine million, five hundred thirty-nine thousand, seven hundred twenty-one".