1823608961 has 4 divisors (see below), whose sum is σ = 1919588400. Its totient is φ = 1727629524.

The previous prime is 1823608909. The next prime is 1823608979. The reversal of 1823608961 is 1698063281.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1823608961 - 2²² = 1819414657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1823608901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47989691 + ... + 47989728.

It is an arithmetic number, because the mean of its divisors is an integer number (479897100).

Almost surely, 2^1823608961 is an apocalyptic number.

It is an amenable number.

1823608961 is a deficient number, since it is larger than the sum of its proper divisors (95979439).

1823608961 is an equidigital number, since it uses as much as digits as its factorization.

1823608961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95979438.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 1823608961 is about 42703.7347429941. The cubic root of 1823608961 is about 1221.7356289436.

The spelling of 1823608961 in words is "one billion, eight hundred twenty-three million, six hundred eight thousand, nine hundred sixty-one".