9864004688 has 20 divisors (see below), whose sum is σ = 19472105268. Its totient is φ = 4838945280.

The previous prime is 9864004681. The next prime is 9864004723. The reversal of 9864004688 is 8864004689.

It can be written as a sum of positive squares in 2 ways, for example, as 8345187904 + 1518816784 = 91352^2 + 38972^2 .

It is a super-3 number, since 3×9864004688³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9864004681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5815193 + ... + 5816888.

Almost surely, 2^9864004688 is an apocalyptic number.

It is an amenable number.

9864004688 is a deficient number, since it is larger than the sum of its proper divisors (9608100580).

9864004688 is a wasteful number, since it uses less digits than its factorization.

9864004688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11632142 (or 11632136 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 53.

The square root of 9864004688 is about 99317.6957445147. The cubic root of 9864004688 is about 2144.6236455705.

Subtracting from 9864004688 its reverse (8864004689), we obtain a palindrome (999999999).

The spelling of 9864004688 in words is "nine billion, eight hundred sixty-four million, four thousand, six hundred eighty-eight".