1225848980689 has 2 divisors, whose sum is σ = 1225848980690. Its totient is φ = 1225848980688.

The previous prime is 1225848980659. The next prime is 1225848980737. The reversal of 1225848980689 is 9860898485221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 993420857025 + 232428123664 = 996705^2 + 482108^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225848980689 - 2⁹ = 1225848980177 is a prime.

It is not a weakly prime, because it can be changed into another prime (1225848980659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612924490344 + 612924490345.

It is an arithmetic number, because the mean of its divisors is an integer number (612924490345).

Almost surely, 2^{1225848980689} is an apocalyptic number.

It is an amenable number.

1225848980689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225848980689 is an equidigital number, since it uses as much as digits as its factorization.

1225848980689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 159252480, while the sum is 70.

The spelling of 1225848980689 in words is "one trillion, two hundred twenty-five billion, eight hundred forty-eight million, nine hundred eighty thousand, six hundred eighty-nine".