206142980738 has 8 divisors (see below), whose sum is σ = 309306209040. Its totient is φ = 103040911060.

The previous prime is 206142980737. The next prime is 206142980741. The reversal of 206142980738 is 837089241602.

206142980738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (206142980731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15281228 + ... + 15294711.

It is an arithmetic number, because the mean of its divisors is an integer number (38663276130).

Almost surely, 2^206142980738 is an apocalyptic number.

206142980738 is a deficient number, since it is larger than the sum of its proper divisors (103163228302).

206142980738 is a wasteful number, since it uses less digits than its factorization.

206142980738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30579312.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 206142980738 in words is "two hundred six billion, one hundred forty-two million, nine hundred eighty thousand, seven hundred thirty-eight".