19213689936 has 80 divisors (see below), whose sum is σ = 57503275904. Its totient is φ = 5414418432.

The previous prime is 19213689931. The next prime is 19213689949. The reversal of 19213689936 is 63998631291.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19213689931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367141 + ... + 416196.

Almost surely, 2^19213689936 is an apocalyptic number.

19213689936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19213689936 is an abundant number, since it is smaller than the sum of its proper divisors (38289585968).

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

19213689936 is a wasteful number, since it uses less digits than its factorization.

19213689936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783428 (or 783422 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 57.

The spelling of 19213689936 in words is "nineteen billion, two hundred thirteen million, six hundred eighty-nine thousand, nine hundred thirty-six".