1178996794541 has 2 divisors, whose sum is σ = 1178996794542. Its totient is φ = 1178996794540.

The previous prime is 1178996794379. The next prime is 1178996794543. The reversal of 1178996794541 is 1454976998711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 757211492041 + 421785302500 = 870179^2 + 649450^2 .

It is a cyclic number.

It is not a de Polignac number, because 1178996794541 - 2¹⁰ = 1178996793517 is a prime.

Together with 1178996794543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1178996794543) 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, 589498397270 + 589498397271.

It is an arithmetic number, because the mean of its divisors is an integer number (589498397271).

Almost surely, 2^{1178996794541} is an apocalyptic number.

It is an amenable number.

1178996794541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1178996794541 is an equidigital number, since it uses as much as digits as its factorization.

1178996794541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 137168640, while the sum is 71.

The spelling of 1178996794541 in words is "one trillion, one hundred seventy-eight billion, nine hundred ninety-six million, seven hundred ninety-four thousand, five hundred forty-one".