1848518291 has 2 divisors, whose sum is σ = 1848518292. Its totient is φ = 1848518290.

The previous prime is 1848518219. The next prime is 1848518339. The reversal of 1848518291 is 1928158481.

Together with previous prime (1848518219) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (1928158481) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1848518291 is a prime.

It is not a weakly prime, because it can be changed into another prime (1848518591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 924259145 + 924259146.

It is an arithmetic number, because the mean of its divisors is an integer number (924259146).

Almost surely, 2^1848518291 is an apocalyptic number.

1848518291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1848518291 is an equidigital number, since it uses as much as digits as its factorization.

1848518291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 47.

The square root of 1848518291 is about 42994.3983676944. The cubic root of 1848518291 is about 1227.2732003691.

The spelling of 1848518291 in words is "one billion, eight hundred forty-eight million, five hundred eighteen thousand, two hundred ninety-one".