1649985283 has 2 divisors, whose sum is σ = 1649985284. Its totient is φ = 1649985282.

The previous prime is 1649985203. The next prime is 1649985287. The reversal of 1649985283 is 3825899461.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1649985283 is a prime.

It is not a weakly prime, because it can be changed into another prime (1649985287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 824992641 + 824992642.

It is an arithmetic number, because the mean of its divisors is an integer number (824992642).

Almost surely, 2^1649985283 is an apocalyptic number.

1649985283 is a deficient number, since it is larger than the sum of its proper divisors (1).

1649985283 is an equidigital number, since it uses as much as digits as its factorization.

1649985283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 55.

The square root of 1649985283 is about 40620.0108690286. The cubic root of 1649985283 is about 1181.6622372096.

The spelling of 1649985283 in words is "one billion, six hundred forty-nine million, nine hundred eighty-five thousand, two hundred eighty-three".