208229448361 has 4 divisors (see below), whose sum is σ = 227159398224. Its totient is φ = 189299498500.

The previous prime is 208229448341. The next prime is 208229448367. The reversal of 208229448361 is 163844922802.

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 208229448361 - 2³³ = 199639513769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (208229448367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9464974915 + ... + 9464974936.

It is an arithmetic number, because the mean of its divisors is an integer number (56789849556).

Almost surely, 2^208229448361 is an apocalyptic number.

It is an amenable number.

208229448361 is a deficient number, since it is larger than the sum of its proper divisors (18929949863).

208229448361 is a wasteful number, since it uses less digits than its factorization.

208229448361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18929949862.

The product of its (nonzero) digits is 1327104, while the sum is 49.

The spelling of 208229448361 in words is "two hundred eight billion, two hundred twenty-nine million, four hundred forty-eight thousand, three hundred sixty-one".