208441081768 has 32 divisors (see below), whose sum is σ = 413870414760. Its totient is φ = 98077224960.

The previous prime is 208441081763. The next prime is 208441081781. The reversal of 208441081768 is 867180144802.

It can be written as a sum of positive squares in 4 ways, for example, as 194835725604 + 13605356164 = 441402^2 + 116642^2 .

It is a super-2 number, since 2×208441081768² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (208441081763) 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 7 ways as a sum of consecutive naturals, for example, 1000048 + ... + 1190368.

Almost surely, 2^208441081768 is an apocalyptic number.

It is an amenable number.

208441081768 is a deficient number, since it is larger than the sum of its proper divisors (205429332992).

208441081768 is a wasteful number, since it uses less digits than its factorization.

208441081768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198397 (or 198393 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 49.

The spelling of 208441081768 in words is "two hundred eight billion, four hundred forty-one million, eighty-one thousand, seven hundred sixty-eight".