89002578817 has 2 divisors, whose sum is σ = 89002578818. Its totient is φ = 89002578816.

The previous prime is 89002578803. The next prime is 89002578893. The reversal of 89002578817 is 71887520098.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88970361841 + 32216976 = 298279^2 + 5676^2 .

It is a cyclic number.

It is not a de Polignac number, because 89002578817 - 2²³ = 88994190209 is a prime.

It is not a weakly prime, because it can be changed into another prime (89002558817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44501289408 + 44501289409.

It is an arithmetic number, because the mean of its divisors is an integer number (44501289409).

Almost surely, 2^89002578817 is an apocalyptic number.

It is an amenable number.

89002578817 is a deficient number, since it is larger than the sum of its proper divisors (1).

89002578817 is an equidigital number, since it uses as much as digits as its factorization.

89002578817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2257920, while the sum is 55.

The spelling of 89002578817 in words is "eighty-nine billion, two million, five hundred seventy-eight thousand, eight hundred seventeen".