1645650243283 has 2 divisors, whose sum is σ = 1645650243284. Its totient is φ = 1645650243282.

The previous prime is 1645650243239. The next prime is 1645650243287. The reversal of 1645650243283 is 3823420565461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1645650243283 - 2⁹ = 1645650242771 is a prime.

It is not a weakly prime, because it can be changed into another prime (1645650243287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 822825121641 + 822825121642.

It is an arithmetic number, because the mean of its divisors is an integer number (822825121642).

Almost surely, 2^{1645650243283} is an apocalyptic number.

1645650243283 is a deficient number, since it is larger than the sum of its proper divisors (1).

1645650243283 is an equidigital number, since it uses as much as digits as its factorization.

1645650243283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 1645650243283 in words is "one trillion, six hundred forty-five billion, six hundred fifty million, two hundred forty-three thousand, two hundred eighty-three".