208047306271 has 16 divisors (see below), whose sum is σ = 238797948928. Its totient is φ = 177554332800.

The previous prime is 208047306241. The next prime is 208047306377. The reversal of 208047306271 is 172603740802.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-208047306271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208047306241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18387706 + ... + 18399016.

It is an arithmetic number, because the mean of its divisors is an integer number (14924871808).

Almost surely, 2^208047306271 is an apocalyptic number.

208047306271 is a deficient number, since it is larger than the sum of its proper divisors (30750642657).

208047306271 is a wasteful number, since it uses less digits than its factorization.

208047306271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22462.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 208047306271 in words is "two hundred eight billion, forty-seven million, three hundred six thousand, two hundred seventy-one".