98819145289 has 2 divisors, whose sum is σ = 98819145290. Its totient is φ = 98819145288.

The previous prime is 98819145277. The next prime is 98819145353. The reversal of 98819145289 is 98254191889.

It is an a-pointer prime, because the next prime (98819145353) can be obtained adding 98819145289 to its sum of digits (64).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97276619664 + 1542525625 = 311892^2 + 39275^2 .

It is a cyclic number.

It is not a de Polignac number, because 98819145289 - 2⁹ = 98819144777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98819145289.

It is not a weakly prime, because it can be changed into another prime (98819145209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49409572644 + 49409572645.

It is an arithmetic number, because the mean of its divisors is an integer number (49409572645).

Almost surely, 2^98819145289 is an apocalyptic number.

It is an amenable number.

98819145289 is a deficient number, since it is larger than the sum of its proper divisors (1).

98819145289 is an equidigital number, since it uses as much as digits as its factorization.

98819145289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14929920, while the sum is 64.

The spelling of 98819145289 in words is "ninety-eight billion, eight hundred nineteen million, one hundred forty-five thousand, two hundred eighty-nine".