78248281673207 has 2 divisors, whose sum is σ = 78248281673208. Its totient is φ = 78248281673206.

The previous prime is 78248281673197. The next prime is 78248281673249. The reversal of 78248281673207 is 70237618284287.

It is a weak prime.

It is an emirp because it is prime and its reverse (70237618284287) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78248281673207 - 2¹⁸ = 78248281411063 is a prime.

It is a super-2 number, since 2×78248281673207² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78248211673207) 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, 39124140836603 + 39124140836604.

It is an arithmetic number, because the mean of its divisors is an integer number (39124140836604).

Almost surely, 2^{78248281673207} is an apocalyptic number.

78248281673207 is a deficient number, since it is larger than the sum of its proper divisors (1).

78248281673207 is an equidigital number, since it uses as much as digits as its factorization.

78248281673207 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 78248281673207 in words is "seventy-eight trillion, two hundred forty-eight billion, two hundred eighty-one million, six hundred seventy-three thousand, two hundred seven".