1214831651717 has 2 divisors, whose sum is σ = 1214831651718. Its totient is φ = 1214831651716.

The previous prime is 1214831651713. The next prime is 1214831651723. The reversal of 1214831651717 is 7171561384121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1068331027201 + 146500624516 = 1033601^2 + 382754^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214831651717 - 2² = 1214831651713 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214831651713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607415825858 + 607415825859.

It is an arithmetic number, because the mean of its divisors is an integer number (607415825859).

Almost surely, 2^{1214831651717} is an apocalyptic number.

It is an amenable number.

1214831651717 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214831651717 is an equidigital number, since it uses as much as digits as its factorization.

1214831651717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 47.

The spelling of 1214831651717 in words is "one trillion, two hundred fourteen billion, eight hundred thirty-one million, six hundred fifty-one thousand, seven hundred seventeen".