1217183086079 has 4 divisors (see below), whose sum is σ = 1217185511640. Its totient is φ = 1217180660520.

The previous prime is 1217183086061. The next prime is 1217183086103. The reversal of 1217183086079 is 9706803817121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1217183086079 - 2⁸ = 1217183085823 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1217183086079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1217183086019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149069 + ... + 1567350.

It is an arithmetic number, because the mean of its divisors is an integer number (304296377910).

Almost surely, 2^{1217183086079} is an apocalyptic number.

1217183086079 is a deficient number, since it is larger than the sum of its proper divisors (2425561).

1217183086079 is an equidigital number, since it uses as much as digits as its factorization.

1217183086079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425560.

The product of its (nonzero) digits is 1016064, while the sum is 53.

The spelling of 1217183086079 in words is "one trillion, two hundred seventeen billion, one hundred eighty-three million, eighty-six thousand, seventy-nine".