206984770973 has 2 divisors, whose sum is σ = 206984770974. Its totient is φ = 206984770972.

The previous prime is 206984770969. The next prime is 206984771083. The reversal of 206984770973 is 379077489602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203403706009 + 3581064964 = 451003^2 + 59842^2 .

It is a cyclic number.

It is not a de Polignac number, because 206984770973 - 2² = 206984770969 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206984773973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103492385486 + 103492385487.

It is an arithmetic number, because the mean of its divisors is an integer number (103492385487).

Almost surely, 2^206984770973 is an apocalyptic number.

It is an amenable number.

206984770973 is a deficient number, since it is larger than the sum of its proper divisors (1).

206984770973 is an equidigital number, since it uses as much as digits as its factorization.

206984770973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32006016, while the sum is 62.

The spelling of 206984770973 in words is "two hundred six billion, nine hundred eighty-four million, seven hundred seventy thousand, nine hundred seventy-three".