1848115813 has 4 divisors (see below), whose sum is σ = 1851911200. Its totient is φ = 1844320428.

The previous prime is 1848115793. The next prime is 1848115831. The reversal of 1848115813 is 3185118481.

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 a de Polignac number, because none of the positive numbers 2^k-1848115813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1848115853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1896963 + ... + 1897936.

It is an arithmetic number, because the mean of its divisors is an integer number (462977800).

Almost surely, 2^1848115813 is an apocalyptic number.

It is an amenable number.

1848115813 is a deficient number, since it is larger than the sum of its proper divisors (3795387).

1848115813 is an equidigital number, since it uses as much as digits as its factorization.

1848115813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3795386.

The product of its digits is 30720, while the sum is 40.

The square root of 1848115813 is about 42989.7175264039. The cubic root of 1848115813 is about 1227.1841224809.

The spelling of 1848115813 in words is "one billion, eight hundred forty-eight million, one hundred fifteen thousand, eight hundred thirteen".