9888564755 has 8 divisors (see below), whose sum is σ = 11880950400. Its totient is φ = 7901070016.

The previous prime is 9888564733. The next prime is 9888564761. The reversal of 9888564755 is 5574658889.

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

It is a cyclic number.

It is not a de Polignac number, because 9888564755 - 2²⁴ = 9871787539 is a prime.

It is a super-3 number, since 3×9888564755³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9888564691 and 9888564700.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1218275 + ... + 1226364.

It is an arithmetic number, because the mean of its divisors is an integer number (1485118800).

Almost surely, 2^9888564755 is an apocalyptic number.

9888564755 is a deficient number, since it is larger than the sum of its proper divisors (1992385645).

9888564755 is a wasteful number, since it uses less digits than its factorization.

9888564755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445453.

The product of its digits is 96768000, while the sum is 65.

The square root of 9888564755 is about 99441.2628389242. The cubic root of 9888564755 is about 2146.4021134085.

The spelling of 9888564755 in words is "nine billion, eight hundred eighty-eight million, five hundred sixty-four thousand, seven hundred fifty-five".