1848451961 has 4 divisors (see below), whose sum is σ = 1848662352. Its totient is φ = 1848241572.

The previous prime is 1848451937. The next prime is 1848451963. The reversal of 1848451961 is 1691548481.

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 1848451961 - 2³⁰ = 774710137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1848451963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91415 + ... + 109788.

It is an arithmetic number, because the mean of its divisors is an integer number (462165588).

Almost surely, 2^1848451961 is an apocalyptic number.

It is an amenable number.

1848451961 is a deficient number, since it is larger than the sum of its proper divisors (210391).

1848451961 is an equidigital number, since it uses as much as digits as its factorization.

1848451961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210390.

The product of its digits is 276480, while the sum is 47.

The square root of 1848451961 is about 42993.6269812166. The cubic root of 1848451961 is about 1227.2585208633.

The spelling of 1848451961 in words is "one billion, eight hundred forty-eight million, four hundred fifty-one thousand, nine hundred sixty-one".