1848735689 has 2 divisors, whose sum is σ = 1848735690. Its totient is φ = 1848735688.

The previous prime is 1848735667. The next prime is 1848735743. The reversal of 1848735689 is 9865378481.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1395769600 + 452966089 = 37360^2 + 21283^2 .

It is a cyclic number.

It is not a de Polignac number, because 1848735689 - 2⁸ = 1848735433 is a prime.

It is not a weakly prime, because it can be changed into another prime (1848735649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 924367844 + 924367845.

It is an arithmetic number, because the mean of its divisors is an integer number (924367845).

Almost surely, 2^1848735689 is an apocalyptic number.

It is an amenable number.

1848735689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1848735689 is an equidigital number, since it uses as much as digits as its factorization.

1848735689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11612160, while the sum is 59.

The square root of 1848735689 is about 42996.9265064376. The cubic root of 1848735689 is about 1227.3213103034.

The spelling of 1848735689 in words is "one billion, eight hundred forty-eight million, seven hundred thirty-five thousand, six hundred eighty-nine".