9788387019680 has 48 divisors (see below), whose sum is σ = 23177265549984. Its totient is φ = 3906516506880.

The previous prime is 9788387019643. The next prime is 9788387019689. The reversal of 9788387019680 is 869107838879.

It is a junction number, because it is equal to n+sod(n) for n = 9788387019598 and 9788387019607.

It is not an unprimeable number, because it can be changed into a prime (9788387019689) 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 7 ways as a sum of consecutive naturals, for example, 68978126 + ... + 69119885.

It is an arithmetic number, because the mean of its divisors is an integer number (482859698958).

Almost surely, 2^{9788387019680} is an apocalyptic number.

It is an amenable number.

9788387019680 is an abundant number, since it is smaller than the sum of its proper divisors (13388878530304).

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

9788387019680 is a wasteful number, since it uses less digits than its factorization.

9788387019680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138098469 (or 138098461 counting only the distinct ones).

The product of its (nonzero) digits is 292626432, while the sum is 74.

The spelling of 9788387019680 in words is "nine trillion, seven hundred eighty-eight billion, three hundred eighty-seven million, nineteen thousand, six hundred eighty".