78824345614213 has 2 divisors, whose sum is σ = 78824345614214. Its totient is φ = 78824345614212.

The previous prime is 78824345614177. The next prime is 78824345614237. The reversal of 78824345614213 is 31241654342887.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67718136184609 + 11106209429604 = 8229103^2 + 3332598^2 .

It is a cyclic number.

It is not a de Polignac number, because 78824345614213 - 2⁹ = 78824345613701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78824345614813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39412172807106 + 39412172807107.

It is an arithmetic number, because the mean of its divisors is an integer number (39412172807107).

Almost surely, 2^{78824345614213} is an apocalyptic number.

It is an amenable number.

78824345614213 is a deficient number, since it is larger than the sum of its proper divisors (1).

78824345614213 is an equidigital number, since it uses as much as digits as its factorization.

78824345614213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30965760, while the sum is 58.

The spelling of 78824345614213 in words is "seventy-eight trillion, eight hundred twenty-four billion, three hundred forty-five million, six hundred fourteen thousand, two hundred thirteen".