1882287961225 has 27 divisors (see below), whose sum is σ = 2715173615367. Its totient is φ = 1290678817680.

The previous prime is 1882287961193. The next prime is 1882287961291. The reversal of 1882287961225 is 5221697822881.

The square root of 1882287961225 is 1371965.

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

It can be written as a sum of positive squares in only one way, i.e., 677623666041 + 1204664295184 = 823179^2 + 1097572^2 .

It is not a de Polignac number, because 1882287961225 - 2⁵ = 1882287961193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 47999176 + ... + 48038374.

Almost surely, 2^{1882287961225} is an apocalyptic number.

1882287961225 is the 1371965-th square number.

1882287961225 is the 685983-rd centered octagonal number.

It is an amenable number.

1882287961225 is a deficient number, since it is larger than the sum of its proper divisors (832885654142).

1882287961225 is an frugal number, since it uses more digits than its factorization.

1882287961225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78422 (or 39211 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 61.

The spelling of 1882287961225 in words is "one trillion, eight hundred eighty-two billion, two hundred eighty-seven million, nine hundred sixty-one thousand, two hundred twenty-five".