219808959830 has 16 divisors (see below), whose sum is σ = 396254711664. Its totient is φ = 87790565280.

The previous prime is 219808959809. The next prime is 219808959841. The reversal of 219808959830 is 38959808912.

219808959830 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 7 ways as a sum of consecutive naturals, for example, 16620392 + ... + 16633611.

It is an arithmetic number, because the mean of its divisors is an integer number (24765919479).

Almost surely, 2^219808959830 is an apocalyptic number.

219808959830 is a deficient number, since it is larger than the sum of its proper divisors (176445751834).

219808959830 is a wasteful number, since it uses less digits than its factorization.

219808959830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33254671.

The product of its (nonzero) digits is 11197440, while the sum is 62.

The spelling of 219808959830 in words is "two hundred nineteen billion, eight hundred eight million, nine hundred fifty-nine thousand, eight hundred thirty".