19680898128 has 20 divisors (see below), whose sum is σ = 50842320288. Its totient is φ = 6560299360.

The previous prime is 19680898109. The next prime is 19680898163. The reversal of 19680898128 is 82189808691.

It is a super-2 number, since 2×19680898128² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 205009308 + ... + 205009403.

Almost surely, 2^19680898128 is an apocalyptic number.

It is an amenable number.

19680898128 is an abundant number, since it is smaller than the sum of its proper divisors (31161422160).

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

19680898128 is a wasteful number, since it uses less digits than its factorization.

19680898128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410018722 (or 410018716 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 60.

The spelling of 19680898128 in words is "nineteen billion, six hundred eighty million, eight hundred ninety-eight thousand, one hundred twenty-eight".