1848518397 has 12 divisors (see below), whose sum is σ = 2912817024. Its totient is φ = 1120314120.

The previous prime is 1848518389. The next prime is 1848518447. The reversal of 1848518397 is 7938158481.

It is not a de Polignac number, because 1848518397 - 2³ = 1848518389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1848518597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9335853 + ... + 9336050.

It is an arithmetic number, because the mean of its divisors is an integer number (242734752).

Almost surely, 2^1848518397 is an apocalyptic number.

It is an amenable number.

1848518397 is a deficient number, since it is larger than the sum of its proper divisors (1064298627).

1848518397 is a wasteful number, since it uses less digits than its factorization.

1848518397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18671920 (or 18671917 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 54.

The square root of 1848518397 is about 42994.3996004131. The cubic root of 1848518397 is about 1227.2732238277.

The spelling of 1848518397 in words is "one billion, eight hundred forty-eight million, five hundred eighteen thousand, three hundred ninety-seven".