89635611209887 has 2 divisors, whose sum is σ = 89635611209888. Its totient is φ = 89635611209886.

The previous prime is 89635611209849. The next prime is 89635611209951. The reversal of 89635611209887 is 78890211653698.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89635611209887 - 2²³ = 89635602821279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89635611209087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44817805604943 + 44817805604944.

It is an arithmetic number, because the mean of its divisors is an integer number (44817805604944).

Almost surely, 2^{89635611209887} is an apocalyptic number.

89635611209887 is a deficient number, since it is larger than the sum of its proper divisors (1).

89635611209887 is an equidigital number, since it uses as much as digits as its factorization.

89635611209887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 313528320, while the sum is 73.

The spelling of 89635611209887 in words is "eighty-nine trillion, six hundred thirty-five billion, six hundred eleven million, two hundred nine thousand, eight hundred eighty-seven".