983680742489 has 2 divisors, whose sum is σ = 983680742490. Its totient is φ = 983680742488.

The previous prime is 983680742351. The next prime is 983680742497. The reversal of 983680742489 is 984247086389.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 715572187225 + 268108555264 = 845915^2 + 517792^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-983680742489 is a prime.

It is not a weakly prime, because it can be changed into another prime (983680742089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491840371244 + 491840371245.

It is an arithmetic number, because the mean of its divisors is an integer number (491840371245).

Almost surely, 2^983680742489 is an apocalyptic number.

It is an amenable number.

983680742489 is a deficient number, since it is larger than the sum of its proper divisors (1).

983680742489 is an equidigital number, since it uses as much as digits as its factorization.

983680742489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 167215104, while the sum is 68.

The spelling of 983680742489 in words is "nine hundred eighty-three billion, six hundred eighty million, seven hundred forty-two thousand, four hundred eighty-nine".