19619805676 has 12 divisors (see below), whose sum is σ = 34338151008. Its totient is φ = 9808905392.

The previous prime is 19619805641. The next prime is 19619805677. The reversal of 19619805676 is 67650891691.

It is a self number, because there is not a number n which added to its sum of digits gives 19619805676.

It is not an unprimeable number, because it can be changed into a prime (19619805677) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 204196 + ... + 284491.

It is an arithmetic number, because the mean of its divisors is an integer number (2861512584).

Almost surely, 2^19619805676 is an apocalyptic number.

It is an amenable number.

19619805676 is a deficient number, since it is larger than the sum of its proper divisors (14718345332).

19619805676 is a wasteful number, since it uses less digits than its factorization.

19619805676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498728 (or 498726 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 58.

The spelling of 19619805676 in words is "nineteen billion, six hundred nineteen million, eight hundred five thousand, six hundred seventy-six".