208340601373 has 4 divisors (see below), whose sum is σ = 208865389180. Its totient is φ = 207815813568.

The previous prime is 208340601323. The next prime is 208340601431. The reversal of 208340601373 is 373106043802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 373106043802 = 2 ⋅186553021901.

It can be written as a sum of positive squares in 2 ways, for example, as 143408388249 + 64932213124 = 378693^2 + 254818^2 .

It is a cyclic number.

It is not a de Polignac number, because 208340601373 - 2²⁹ = 207803730461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208340601323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262393308 + ... + 262394101.

It is an arithmetic number, because the mean of its divisors is an integer number (52216347295).

Almost surely, 2^208340601373 is an apocalyptic number.

It is an amenable number.

208340601373 is a deficient number, since it is larger than the sum of its proper divisors (524787807).

208340601373 is an equidigital number, since it uses as much as digits as its factorization.

208340601373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524787806.

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 208340601373 in words is "two hundred eight billion, three hundred forty million, six hundred one thousand, three hundred seventy-three".