1983417409333 has 2 divisors, whose sum is σ = 1983417409334. Its totient is φ = 1983417409332.

The previous prime is 1983417409331. The next prime is 1983417409357. The reversal of 1983417409333 is 3339047143891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1797468445809 + 185948963524 = 1340697^2 + 431218^2 .

It is a cyclic number.

It is not a de Polignac number, because 1983417409333 - 2¹ = 1983417409331 is a prime.

Together with 1983417409331, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1983417409331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991708704666 + 991708704667.

It is an arithmetic number, because the mean of its divisors is an integer number (991708704667).

Almost surely, 2^{1983417409333} is an apocalyptic number.

It is an amenable number.

1983417409333 is a deficient number, since it is larger than the sum of its proper divisors (1).

1983417409333 is an equidigital number, since it uses as much as digits as its factorization.

1983417409333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5878656, while the sum is 55.

The spelling of 1983417409333 in words is "one trillion, nine hundred eighty-three billion, four hundred seventeen million, four hundred nine thousand, three hundred thirty-three".