89356198109 has 2 divisors, whose sum is σ = 89356198110. Its totient is φ = 89356198108.

The previous prime is 89356198069. The next prime is 89356198189. The reversal of 89356198109 is 90189165398.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89354362084 + 1836025 = 298922^2 + 1355^2 .

It is a cyclic number.

It is not a de Polignac number, because 89356198109 - 2¹⁶ = 89356132573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89356198189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44678099054 + 44678099055.

It is an arithmetic number, because the mean of its divisors is an integer number (44678099055).

Almost surely, 2^89356198109 is an apocalyptic number.

It is an amenable number.

89356198109 is a deficient number, since it is larger than the sum of its proper divisors (1).

89356198109 is an equidigital number, since it uses as much as digits as its factorization.

89356198109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4199040, while the sum is 59.

The spelling of 89356198109 in words is "eighty-nine billion, three hundred fifty-six million, one hundred ninety-eight thousand, one hundred nine".