9988754578899 has 8 divisors (see below), whose sum is σ = 13318789060560. Its totient is φ = 6658944908256.

The previous prime is 9988754578897. The next prime is 9988754578909.

9988754578899 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9988754578899 - 2¹ = 9988754578897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9988754578897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56099052 + ... + 56276825.

It is an arithmetic number, because the mean of its divisors is an integer number (1664848632570).

Almost surely, 2^{9988754578899} is an apocalyptic number.

9988754578899 is a deficient number, since it is larger than the sum of its proper divisors (3330034481661).

9988754578899 is a wasteful number, since it uses less digits than its factorization.

9988754578899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112405509.

The product of its digits is 131681894400, while the sum is 96.

The spelling of 9988754578899 in words is "nine trillion, nine hundred eighty-eight billion, seven hundred fifty-four million, five hundred seventy-eight thousand, eight hundred ninety-nine".