206968135629 has 8 divisors (see below), whose sum is σ = 276055417440. Its totient is φ = 137929805456.

The previous prime is 206968135613. The next prime is 206968135631. The reversal of 206968135629 is 926531869602.

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

It is a cyclic number.

It is not a de Polignac number, because 206968135629 - 2⁴ = 206968135613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206968135609) 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 7 ways as a sum of consecutive naturals, for example, 12228042 + ... + 12244955.

It is an arithmetic number, because the mean of its divisors is an integer number (34506927180).

Almost surely, 2^206968135629 is an apocalyptic number.

It is an amenable number.

206968135629 is a deficient number, since it is larger than the sum of its proper divisors (69087281811).

206968135629 is a wasteful number, since it uses less digits than its factorization.

206968135629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24475819.

The product of its (nonzero) digits is 8398080, while the sum is 57.

The spelling of 206968135629 in words is "two hundred six billion, nine hundred sixty-eight million, one hundred thirty-five thousand, six hundred twenty-nine".