9868864091 has 8 divisors (see below), whose sum is σ = 10042962384. Its totient is φ = 9696080160.

The previous prime is 9868864067. The next prime is 9868864121. The reversal of 9868864091 is 1904688689.

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 9868864091 - 2¹⁴ = 9868847707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9868864091.

It is not an unprimeable number, because it can be changed into a prime (9868864391) 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, 313436 + ... + 343481.

It is an arithmetic number, because the mean of its divisors is an integer number (1255370298).

Almost surely, 2^9868864091 is an apocalyptic number.

9868864091 is a deficient number, since it is larger than the sum of its proper divisors (174098293).

9868864091 is a wasteful number, since it uses less digits than its factorization.

9868864091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657181.

The product of its (nonzero) digits is 5971968, while the sum is 59.

The square root of 9868864091 is about 99342.1566657378. The cubic root of 9868864091 is about 2144.9757635324.

The spelling of 9868864091 in words is "nine billion, eight hundred sixty-eight million, eight hundred sixty-four thousand, ninety-one".