9864654549 has 16 divisors (see below), whose sum is σ = 14222884608. Its totient is φ = 6057892352.

The previous prime is 9864654523. The next prime is 9864654599. The reversal of 9864654549 is 9454564689.

It is a cyclic number.

It is not a de Polignac number, because 9864654549 - 2²⁵ = 9831100117 is a prime.

It is a super-2 number, since 2×9864654549² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9864654492 and 9864654501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9864654599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2055312 + ... + 2060105.

It is an arithmetic number, because the mean of its divisors is an integer number (888930288).

Almost surely, 2^9864654549 is an apocalyptic number.

It is an amenable number.

9864654549 is a deficient number, since it is larger than the sum of its proper divisors (4358230059).

9864654549 is a wasteful number, since it uses less digits than its factorization.

9864654549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115484.

The product of its digits is 37324800, while the sum is 60.

The square root of 9864654549 is about 99320.9673180845. The cubic root of 9864654549 is about 2144.6707419478.

The spelling of 9864654549 in words is "nine billion, eight hundred sixty-four million, six hundred fifty-four thousand, five hundred forty-nine".