9866807572311 has 16 divisors (see below), whose sum is σ = 14617641068800. Its totient is φ = 6577804948824.

The previous prime is 9866807572253. The next prime is 9866807572337. The reversal of 9866807572311 is 1132757086689.

It is not a de Polignac number, because 9866807572311 - 2²¹ = 9866805475159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9866807572411) 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, 930780 + ... + 4538718.

It is an arithmetic number, because the mean of its divisors is an integer number (913602566800).

Almost surely, 2^{9866807572311} is an apocalyptic number.

9866807572311 is a deficient number, since it is larger than the sum of its proper divisors (4750833496489).

9866807572311 is a wasteful number, since it uses less digits than its factorization.

9866807572311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3709235 (or 3709229 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 63.

The spelling of 9866807572311 in words is "nine trillion, eight hundred sixty-six billion, eight hundred seven million, five hundred seventy-two thousand, three hundred eleven".