78467827802213 has 2 divisors, whose sum is σ = 78467827802214. Its totient is φ = 78467827802212.

The previous prime is 78467827802209. The next prime is 78467827802363. The reversal of 78467827802213 is 31220872876487.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57883839908449 + 20583987893764 = 7608143^2 + 4536958^2 .

It is a cyclic number.

It is not a de Polignac number, because 78467827802213 - 2² = 78467827802209 is a prime.

It is a super-4 number, since 4×78467827802213⁴ (a number of 57 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a self number, because there is not a number n which added to its sum of digits gives 78467827802213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78467827804213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39233913901106 + 39233913901107.

It is an arithmetic number, because the mean of its divisors is an integer number (39233913901107).

Almost surely, 2^{78467827802213} is an apocalyptic number.

It is an amenable number.

78467827802213 is a deficient number, since it is larger than the sum of its proper divisors (1).

78467827802213 is an equidigital number, since it uses as much as digits as its factorization.

78467827802213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 101154816, while the sum is 65.

The spelling of 78467827802213 in words is "seventy-eight trillion, four hundred sixty-seven billion, eight hundred twenty-seven million, eight hundred two thousand, two hundred thirteen".