206768249086 has 8 divisors (see below), whose sum is σ = 354459855600. Its totient is φ = 88614963888.

The previous prime is 206768249081. The next prime is 206768249147. The reversal of 206768249086 is 680942867602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 206768249086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206768249081) 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 3 ways as a sum of consecutive naturals, for example, 7384580311 + ... + 7384580338.

It is an arithmetic number, because the mean of its divisors is an integer number (44307481950).

Almost surely, 2^206768249086 is an apocalyptic number.

206768249086 is a deficient number, since it is larger than the sum of its proper divisors (147691606514).

206768249086 is a wasteful number, since it uses less digits than its factorization.

206768249086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14769160658.

The product of its (nonzero) digits is 13934592, while the sum is 58.

The spelling of 206768249086 in words is "two hundred six billion, seven hundred sixty-eight million, two hundred forty-nine thousand, eighty-six".