1178999351659 has 2 divisors, whose sum is σ = 1178999351660. Its totient is φ = 1178999351658.

The previous prime is 1178999351657. The next prime is 1178999351693. The reversal of 1178999351659 is 9561539998711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1178999351659 - 2¹ = 1178999351657 is a prime.

Together with 1178999351657, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1178999351591 and 1178999351600.

It is not a weakly prime, because it can be changed into another prime (1178999351657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 589499675829 + 589499675830.

It is an arithmetic number, because the mean of its divisors is an integer number (589499675830).

Almost surely, 2^{1178999351659} is an apocalyptic number.

1178999351659 is a deficient number, since it is larger than the sum of its proper divisors (1).

1178999351659 is an equidigital number, since it uses as much as digits as its factorization.

1178999351659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165337200, while the sum is 73.

The spelling of 1178999351659 in words is "one trillion, one hundred seventy-eight billion, nine hundred ninety-nine million, three hundred fifty-one thousand, six hundred fifty-nine".