208858810028070 has 16 divisors (see below), whose sum is σ = 501261144067440. Its totient is φ = 55695682674144.

The previous prime is 208858810028069. The next prime is 208858810028147. The reversal of 208858810028070 is 70820018858802.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 208858810028070.

It is a congruent number.

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, 3480980167105 + ... + 3480980167164.

It is an arithmetic number, because the mean of its divisors is an integer number (31328821504215).

Almost surely, 2^{208858810028070} is an apocalyptic number.

208858810028070 is an abundant number, since it is smaller than the sum of its proper divisors (292402334039370).

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

208858810028070 is a wasteful number, since it uses less digits than its factorization.

208858810028070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6961960334279.

The product of its (nonzero) digits is 4587520, while the sum is 57.

The spelling of 208858810028070 in words is "two hundred eight trillion, eight hundred fifty-eight billion, eight hundred ten million, twenty-eight thousand, seventy".