208045881319 has 4 divisors (see below), whose sum is σ = 208050907744. Its totient is φ = 208040854896.

The previous prime is 208045881227. The next prime is 208045881343. The reversal of 208045881319 is 913188540802.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 208045881319 - 2¹⁵ = 208045848551 is a prime.

It is a super-2 number, since 2×208045881319² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208045881019) 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, 2450607 + ... + 2534080.

It is an arithmetic number, because the mean of its divisors is an integer number (52012726936).

Almost surely, 2^208045881319 is an apocalyptic number.

208045881319 is a deficient number, since it is larger than the sum of its proper divisors (5026425).

208045881319 is an equidigital number, since it uses as much as digits as its factorization.

208045881319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5026424.

The product of its (nonzero) digits is 552960, while the sum is 49.

The spelling of 208045881319 in words is "two hundred eight billion, forty-five million, eight hundred eighty-one thousand, three hundred nineteen".