1846786849 has 2 divisors, whose sum is σ = 1846786850. Its totient is φ = 1846786848.

The previous prime is 1846786847. The next prime is 1846786867. The reversal of 1846786849 is 9486876481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1173747600 + 673039249 = 34260^2 + 25943^2 .

It is a cyclic number.

It is not a de Polignac number, because 1846786849 - 2¹ = 1846786847 is a prime.

Together with 1846786847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1846786841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 923393424 + 923393425.

It is an arithmetic number, because the mean of its divisors is an integer number (923393425).

Almost surely, 2^1846786849 is an apocalyptic number.

It is an amenable number.

1846786849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1846786849 is an equidigital number, since it uses as much as digits as its factorization.

1846786849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18579456, while the sum is 61.

The square root of 1846786849 is about 42974.2579807959. The cubic root of 1846786849 is about 1226.8898994705.

The spelling of 1846786849 in words is "one billion, eight hundred forty-six million, seven hundred eighty-six thousand, eight hundred forty-nine".