208208612249 has 16 divisors (see below), whose sum is σ = 227528153280. Its totient is φ = 188954568000.

The previous prime is 208208612239. The next prime is 208208612263. The reversal of 208208612249 is 942216802802.

208208612249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 208208612249 - 2⁴ = 208208612233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208208612239) 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 15 ways as a sum of consecutive naturals, for example, 22852907 + ... + 22862015.

It is an arithmetic number, because the mean of its divisors is an integer number (14220509580).

Almost surely, 2^208208612249 is an apocalyptic number.

It is an amenable number.

208208612249 is a deficient number, since it is larger than the sum of its proper divisors (19319541031).

208208612249 is a wasteful number, since it uses less digits than its factorization.

208208612249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12472.

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 208208612249 in words is "two hundred eight billion, two hundred eight million, six hundred twelve thousand, two hundred forty-nine".