208628920360 has 32 divisors (see below), whose sum is σ = 536474367360. Its totient is φ = 71529915456.

The previous prime is 208628920349. The next prime is 208628920399. The reversal of 208628920360 is 63029826802.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 208628920360.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372551364 + ... + 372551923.

It is an arithmetic number, because the mean of its divisors is an integer number (16764823980).

Almost surely, 2^208628920360 is an apocalyptic number.

208628920360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208628920360 is an abundant number, since it is smaller than the sum of its proper divisors (327845447000).

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

208628920360 is a wasteful number, since it uses less digits than its factorization.

208628920360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745103305 (or 745103301 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 208628920360 in words is "two hundred eight billion, six hundred twenty-eight million, nine hundred twenty thousand, three hundred sixty".