208313629994420 has 24 divisors (see below), whose sum is σ = 439420320858624. Its totient is φ = 82951795260576.

The previous prime is 208313629994381. The next prime is 208313629994441. The reversal of 208313629994420 is 24499926313802.

It is a super-2 number, since 2×208313629994420² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23353541504 + ... + 23353550423.

It is an arithmetic number, because the mean of its divisors is an integer number (18309180035776).

Almost surely, 2^{208313629994420} is an apocalyptic number.

208313629994420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208313629994420 is an abundant number, since it is smaller than the sum of its proper divisors (231106690864204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208313629994420 is a wasteful number, since it uses less digits than its factorization.

208313629994420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46707092159 (or 46707092157 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 62.

The spelling of 208313629994420 in words is "two hundred eight trillion, three hundred thirteen billion, six hundred twenty-nine million, nine hundred ninety-four thousand, four hundred twenty".