208630919796 has 144 divisors (see below), whose sum is σ = 545667139584. Its totient is φ = 61964517888.

The previous prime is 208630919767. The next prime is 208630919803. The reversal of 208630919796 is 697919036802.

208630919796 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 9518626 + ... + 9540518.

It is an arithmetic number, because the mean of its divisors is an integer number (3789355136).

Almost surely, 2^208630919796 is an apocalyptic number.

208630919796 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208630919796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272833569792).

208630919796 is an abundant number, since it is smaller than the sum of its proper divisors (337036219788).

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

208630919796 is a wasteful number, since it uses less digits than its factorization.

208630919796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22090 (or 22075 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 60.

The spelling of 208630919796 in words is "two hundred eight billion, six hundred thirty million, nine hundred nineteen thousand, seven hundred ninety-six".