19073486328 has 128 divisors (see below), whose sum is σ = 54550843200. Its totient is φ = 5505417216.

The previous prime is 19073486323. The next prime is 19073486359. The reversal of 19073486328 is 82368437091.

19073486328 is nontrivially palindromic in base 5.

19073486328 is a nontrivial binomial coefficient, being equal to C(195313, 2).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

19073486328 is an undulating number in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19073486323) 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 31 ways as a sum of consecutive naturals, for example, 1654408 + ... + 1665896.

Almost surely, 2^19073486328 is an apocalyptic number.

19073486328 is the 195312-nd triangular number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19073486328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27275421600).

19073486328 is an abundant number, since it is smaller than the sum of its proper divisors (35477356872).

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

19073486328 is a wasteful number, since it uses less digits than its factorization.

19073486328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11841 (or 11837 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 19073486328 in words is "nineteen billion, seventy-three million, four hundred eighty-six thousand, three hundred twenty-eight".