9867847363969 has 27 divisors (see below), whose sum is σ = 11516263231683. Its totient is φ = 8430731220912.

The previous prime is 9867847363883. The next prime is 9867847363973. The reversal of 9867847363969 is 9693637487689.

The square root of 9867847363969 is 3141313.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 19472807025 + 9848374556944 = 139545^2 + 3138212^2 .

It is not a de Polignac number, because 9867847363969 - 2¹³ = 9867847355777 is a prime.

It is a super-2 number, since 2×9867847363969² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9867847333969) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 9741211107 + ... + 9741212119.

Almost surely, 2^{9867847363969} is an apocalyptic number.

9867847363969 is the 3141313-rd square number.

9867847363969 is the 1570657-th centered octagonal number.

It is an amenable number.

9867847363969 is a deficient number, since it is larger than the sum of its proper divisors (1648415867714).

9867847363969 is an frugal number, since it uses more digits than its factorization.

9867847363969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2926 (or 1463 counting only the distinct ones).

The product of its digits is 17777055744, while the sum is 85.

The spelling of 9867847363969 in words is "nine trillion, eight hundred sixty-seven billion, eight hundred forty-seven million, three hundred sixty-three thousand, nine hundred sixty-nine".