206989499492 has 12 divisors (see below), whose sum is σ = 374722369980. Its totient is φ = 99925965216.

The previous prime is 206989499491. The next prime is 206989499531. The reversal of 206989499492 is 294994989602.

206989499492 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 120925889536 + 86063609956 = 347744^2 + 293366^2 .

It is not an unprimeable number, because it can be changed into a prime (206989499491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892196003 + ... + 892196234.

It is an arithmetic number, because the mean of its divisors is an integer number (31226864165).

Almost surely, 2^206989499492 is an apocalyptic number.

It is an amenable number.

206989499492 is a deficient number, since it is larger than the sum of its proper divisors (167732870488).

206989499492 is a wasteful number, since it uses less digits than its factorization.

206989499492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784392270 (or 1784392268 counting only the distinct ones).

The product of its (nonzero) digits is 181398528, while the sum is 71.

The spelling of 206989499492 in words is "two hundred six billion, nine hundred eighty-nine million, four hundred ninety-nine thousand, four hundred ninety-two".