8963215390489 has 2 divisors, whose sum is σ = 8963215390490. Its totient is φ = 8963215390488.

The previous prime is 8963215390429. The next prime is 8963215390501. The reversal of 8963215390489 is 9840935123698.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4858863544089 + 4104351846400 = 2204283^2 + 2025920^2 .

It is a cyclic number.

It is not a de Polignac number, because 8963215390489 - 2²⁵ = 8963181836057 is a prime.

It is not a weakly prime, because it can be changed into another prime (8963215390429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4481607695244 + 4481607695245.

It is an arithmetic number, because the mean of its divisors is an integer number (4481607695245).

Almost surely, 2^{8963215390489} is an apocalyptic number.

It is an amenable number.

8963215390489 is a deficient number, since it is larger than the sum of its proper divisors (1).

8963215390489 is an equidigital number, since it uses as much as digits as its factorization.

8963215390489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100776960, while the sum is 67.

The spelling of 8963215390489 in words is "eight trillion, nine hundred sixty-three billion, two hundred fifteen million, three hundred ninety thousand, four hundred eighty-nine".