19013935620 has 48 divisors (see below), whose sum is σ = 53323498368. Its totient is φ = 5062337280.

The previous prime is 19013935609. The next prime is 19013935627. The reversal of 19013935620 is 2653931091.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (19013935627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213249 + ... + 288968.

It is an arithmetic number, because the mean of its divisors is an integer number (1110906216).

Almost surely, 2^19013935620 is an apocalyptic number.

19013935620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19013935620 is an abundant number, since it is smaller than the sum of its proper divisors (34309562748).

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

19013935620 is a wasteful number, since it uses less digits than its factorization.

19013935620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502860 (or 502858 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 39.

The spelling of 19013935620 in words is "nineteen billion, thirteen million, nine hundred thirty-five thousand, six hundred twenty".