208430632680 has 32 divisors (see below), whose sum is σ = 625291898400. Its totient is φ = 55581502016.

The previous prime is 208430632679. The next prime is 208430632699. The reversal of 208430632680 is 86236034802.

208430632680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 868460850 + ... + 868461089.

It is an arithmetic number, because the mean of its divisors is an integer number (19540371825).

Almost surely, 2^208430632680 is an apocalyptic number.

208430632680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208430632680 is an abundant number, since it is smaller than the sum of its proper divisors (416861265720).

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

208430632680 is a wasteful number, since it uses less digits than its factorization.

208430632680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736921953 (or 1736921949 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 208430632680 in words is "two hundred eight billion, four hundred thirty million, six hundred thirty-two thousand, six hundred eighty".