1209615718463 has 2 divisors, whose sum is σ = 1209615718464. Its totient is φ = 1209615718462.

The previous prime is 1209615718427. The next prime is 1209615718489. The reversal of 1209615718463 is 3648175169021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1209615718463 - 2¹⁰ = 1209615717439 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1209615718763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 604807859231 + 604807859232.

It is an arithmetic number, because the mean of its divisors is an integer number (604807859232).

It is a 1-persistent number, because it is pandigital, but 2⋅1209615718463 = 2419231436926 is not.

Almost surely, 2^{1209615718463} is an apocalyptic number.

1209615718463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1209615718463 is an equidigital number, since it uses as much as digits as its factorization.

1209615718463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 1209615718463 in words is "one trillion, two hundred nine billion, six hundred fifteen million, seven hundred eighteen thousand, four hundred sixty-three".