208381542008 has 8 divisors (see below), whose sum is σ = 390715391280. Its totient is φ = 104190771000.

The previous prime is 208381541993. The next prime is 208381542013. The reversal of 208381542008 is 800245183802.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13023846368 + ... + 13023846383.

It is an arithmetic number, because the mean of its divisors is an integer number (48839423910).

Almost surely, 2^208381542008 is an apocalyptic number.

It is an amenable number.

208381542008 is a deficient number, since it is larger than the sum of its proper divisors (182333849272).

208381542008 is a wasteful number, since it uses less digits than its factorization.

208381542008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26047692757 (or 26047692753 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 41.

The spelling of 208381542008 in words is "two hundred eight billion, three hundred eighty-one million, five hundred forty-two thousand, eight".