208849729038 has 32 divisors (see below), whose sum is σ = 439817389440. Its totient is φ = 65932483680.

The previous prime is 208849729037. The next prime is 208849729061. The reversal of 208849729038 is 830927948802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208849729037) 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 15 ways as a sum of consecutive naturals, for example, 100008 + ... + 653988.

It is an arithmetic number, because the mean of its divisors is an integer number (13744293420).

Almost surely, 2^208849729038 is an apocalyptic number.

208849729038 is an abundant number, since it is smaller than the sum of its proper divisors (230967660402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208849729038 is a wasteful number, since it uses less digits than its factorization.

208849729038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557312.

The product of its (nonzero) digits is 13934592, while the sum is 60.

The spelling of 208849729038 in words is "two hundred eight billion, eight hundred forty-nine million, seven hundred twenty-nine thousand, thirty-eight".