208047306273 has 4 divisors (see below), whose sum is σ = 277396408368. Its totient is φ = 138698204180.

The previous prime is 208047306241. The next prime is 208047306377. The reversal of 208047306273 is 372603740802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 208047306273 - 2⁵ = 208047306241 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (208047306473) 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 3 ways as a sum of consecutive naturals, for example, 34674551043 + ... + 34674551048.

It is an arithmetic number, because the mean of its divisors is an integer number (69349102092).

Almost surely, 2^208047306273 is an apocalyptic number.

It is an amenable number.

208047306273 is a deficient number, since it is larger than the sum of its proper divisors (69349102095).

208047306273 is an equidigital number, since it uses as much as digits as its factorization.

208047306273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69349102094.

The product of its (nonzero) digits is 338688, while the sum is 42.

The spelling of 208047306273 in words is "two hundred eight billion, forty-seven million, three hundred six thousand, two hundred seventy-three".