208419920830 has 32 divisors (see below), whose sum is σ = 409328316000. Its totient is φ = 75776584320.

The previous prime is 208419920827. The next prime is 208419920833. The reversal of 208419920830 is 38029914802.

It is an interprime number because it is at equal distance from previous prime (208419920827) and next prime (208419920833).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208419920833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528796 + ... + 834544.

It is an arithmetic number, because the mean of its divisors is an integer number (12791509875).

Almost surely, 2^208419920830 is an apocalyptic number.

208419920830 is a deficient number, since it is larger than the sum of its proper divisors (200908395170).

208419920830 is a wasteful number, since it uses less digits than its factorization.

208419920830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311964.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 208419920830 in words is "two hundred eight billion, four hundred nineteen million, nine hundred twenty thousand, eight hundred thirty".