9862564652989 has 2 divisors, whose sum is σ = 9862564652990. Its totient is φ = 9862564652988.

The previous prime is 9862564652971. The next prime is 9862564652999. The reversal of 9862564652989 is 9892564652689.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5905667904964 + 3956896748025 = 2430158^2 + 1989195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9862564652989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9862564652909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4931282326494 + 4931282326495.

It is an arithmetic number, because the mean of its divisors is an integer number (4931282326495).

Almost surely, 2^{9862564652989} is an apocalyptic number.

It is an amenable number.

9862564652989 is a deficient number, since it is larger than the sum of its proper divisors (1).

9862564652989 is an equidigital number, since it uses as much as digits as its factorization.

9862564652989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4031078400, while the sum is 79.

The spelling of 9862564652989 in words is "nine trillion, eight hundred sixty-two billion, five hundred sixty-four million, six hundred fifty-two thousand, nine hundred eighty-nine".