89635611209849 has 2 divisors, whose sum is σ = 89635611209850. Its totient is φ = 89635611209848.

The previous prime is 89635611209813. The next prime is 89635611209887. The reversal of 89635611209849 is 94890211653698.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89429647725625 + 205963484224 = 9456725^2 + 453832^2 .

It is a cyclic number.

It is not a de Polignac number, because 89635611209849 - 2¹² = 89635611205753 is a prime.

It is not a weakly prime, because it can be changed into another prime (89635611209449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44817805604924 + 44817805604925.

It is an arithmetic number, because the mean of its divisors is an integer number (44817805604925).

Almost surely, 2^{89635611209849} is an apocalyptic number.

It is an amenable number.

89635611209849 is a deficient number, since it is larger than the sum of its proper divisors (1).

89635611209849 is an equidigital number, since it uses as much as digits as its factorization.

89635611209849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201553920, while the sum is 71.

The spelling of 89635611209849 in words is "eighty-nine trillion, six hundred thirty-five billion, six hundred eleven million, two hundred nine thousand, eight hundred forty-nine".