208208691010 has 8 divisors (see below), whose sum is σ = 374775643836. Its totient is φ = 83283476400.

The previous prime is 208208691007. The next prime is 208208691013. The reversal of 208208691010 is 10196802802.

208208691010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (208208691007) and next prime (208208691013).

It can be written as a sum of positive squares in 2 ways, for example, as 195833685961 + 12375005049 = 442531^2 + 111243^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (208208691013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10410434541 + ... + 10410434560.

Almost surely, 2^208208691010 is an apocalyptic number.

208208691010 is a deficient number, since it is larger than the sum of its proper divisors (166566952826).

208208691010 is a wasteful number, since it uses less digits than its factorization.

208208691010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20820869108.

The product of its (nonzero) digits is 13824, while the sum is 37.

The spelling of 208208691010 in words is "two hundred eight billion, two hundred eight million, six hundred ninety-one thousand, ten".