19109946830 has 16 divisors (see below), whose sum is σ = 37043897184. Its totient is φ = 7055980320.

The previous prime is 19109946803. The next prime is 19109946833. The reversal of 19109946830 is 3864990191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19109946833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73499666 + ... + 73499925.

It is an arithmetic number, because the mean of its divisors is an integer number (2315243574).

Almost surely, 2^19109946830 is an apocalyptic number.

19109946830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19109946830 is a deficient number, since it is larger than the sum of its proper divisors (17933950354).

19109946830 is a wasteful number, since it uses less digits than its factorization.

19109946830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146999611.

The product of its (nonzero) digits is 419904, while the sum is 50.

The spelling of 19109946830 in words is "nineteen billion, one hundred nine million, nine hundred forty-six thousand, eight hundred thirty".