19788328935 has 48 divisors (see below), whose sum is σ = 34892745888. Its totient is φ = 10371628800.

The previous prime is 19788328913. The next prime is 19788328991. The reversal of 19788328935 is 53982388791.

It is not a de Polignac number, because 19788328935 - 2¹⁵ = 19788296167 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4068405 + ... + 4073265.

It is an arithmetic number, because the mean of its divisors is an integer number (726932206).

Almost surely, 2^19788328935 is an apocalyptic number.

19788328935 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19788328935 is a deficient number, since it is larger than the sum of its proper divisors (15104416953).

19788328935 is a wasteful number, since it uses less digits than its factorization.

19788328935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6416 (or 6413 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The spelling of 19788328935 in words is "nineteen billion, seven hundred eighty-eight million, three hundred twenty-eight thousand, nine hundred thirty-five".