206984770971 has 16 divisors (see below), whose sum is σ = 318778685568. Its totient is φ = 118066179200.

The previous prime is 206984770969. The next prime is 206984770973. The reversal of 206984770971 is 179077489602.

It is an interprime number because it is at equal distance from previous prime (206984770969) and next prime (206984770973).

It is a cyclic number.

It is not a de Polignac number, because 206984770971 - 2¹ = 206984770969 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (206984770973) 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 in 15 ways as a sum of consecutive naturals, for example, 184477845 + ... + 184478966.

It is an arithmetic number, because the mean of its divisors is an integer number (19923667848).

Almost surely, 2^206984770971 is an apocalyptic number.

206984770971 is a deficient number, since it is larger than the sum of its proper divisors (111793914597).

206984770971 is a wasteful number, since it uses less digits than its factorization.

206984770971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368956842.

The product of its (nonzero) digits is 10668672, while the sum is 60.

The spelling of 206984770971 in words is "two hundred six billion, nine hundred eighty-four million, seven hundred seventy thousand, nine hundred seventy-one".