19668834830 has 8 divisors (see below), whose sum is σ = 35403902712. Its totient is φ = 7867533928.

The previous prime is 19668834803. The next prime is 19668834841. The reversal of 19668834830 is 3843886691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×19668834830² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983441732 + ... + 983441751.

It is an arithmetic number, because the mean of its divisors is an integer number (4425487839).

Almost surely, 2^19668834830 is an apocalyptic number.

19668834830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19668834830 is a deficient number, since it is larger than the sum of its proper divisors (15735067882).

19668834830 is a wasteful number, since it uses less digits than its factorization.

19668834830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966883490.

The product of its (nonzero) digits is 5971968, while the sum is 56.

The spelling of 19668834830 in words is "nineteen billion, six hundred sixty-eight million, eight hundred thirty-four thousand, eight hundred thirty".