1178682256243 has 2 divisors, whose sum is σ = 1178682256244. Its totient is φ = 1178682256242.

The previous prime is 1178682256231. The next prime is 1178682256327. The reversal of 1178682256243 is 3426522868711.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3426522868711) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1178682256243 is a prime.

It is a super-2 number, since 2×1178682256243² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1178682250243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 589341128121 + 589341128122.

It is an arithmetic number, because the mean of its divisors is an integer number (589341128122).

Almost surely, 2^{1178682256243} is an apocalyptic number.

1178682256243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1178682256243 is an equidigital number, since it uses as much as digits as its factorization.

1178682256243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7741440, while the sum is 55.

The spelling of 1178682256243 in words is "one trillion, one hundred seventy-eight billion, six hundred eighty-two million, two hundred fifty-six thousand, two hundred forty-three".