1848161399841 has 9 divisors (see below), whose sum is σ = 2669572357491. Its totient is φ = 1232104880952.

The previous prime is 1848161399831. The next prime is 1848161399849. The reversal of 1848161399841 is 1489931618481.

The square root of 1848161399841 is 1359471.

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

1848161399841 is a `hidden beast` number, since 1 + 8 + 4 + 8 + 1 + 613 + 9 + 9 + 8 + 4 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1800896900625 + 47264499216 = 1341975^2 + 217404^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 1848161399841 - 2¹³ = 1848161391649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1848161399849) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3851835 + ... + 4304991.

Almost surely, 2^{1848161399841} is an apocalyptic number.

1848161399841 is the 1359471-st square number.

1848161399841 is the 679736-th centered octagonal number.

It is an amenable number.

1848161399841 is a deficient number, since it is larger than the sum of its proper divisors (821410957650).

1848161399841 is an frugal number, since it uses more digits than its factorization.

1848161399841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906320 (or 453160 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 63.

The spelling of 1848161399841 in words is "one trillion, eight hundred forty-eight billion, one hundred sixty-one million, three hundred ninety-nine thousand, eight hundred forty-one".