1882492561 has 4 divisors (see below), whose sum is σ = 1885376052. Its totient is φ = 1879609072.

The previous prime is 1882492543. The next prime is 1882492597. The reversal of 1882492561 is 1652942881.

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 793492561 + 1089000000 = 28169^2 + 33000^2 .

It is a cyclic number.

It is not a de Polignac number, because 1882492561 - 2²⁷ = 1748274833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1882492541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440766 + ... + 1442071.

It is an arithmetic number, because the mean of its divisors is an integer number (471344013).

Almost surely, 2^1882492561 is an apocalyptic number.

It is an amenable number.

1882492561 is a deficient number, since it is larger than the sum of its proper divisors (2883491).

1882492561 is an equidigital number, since it uses as much as digits as its factorization.

1882492561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883490.

The product of its digits is 276480, while the sum is 46.

The square root of 1882492561 is about 43387.7005728582. The cubic root of 1882492561 is about 1234.7463647813.

The spelling of 1882492561 in words is "one billion, eight hundred eighty-two million, four hundred ninety-two thousand, five hundred sixty-one".