1178048288581 has 2 divisors, whose sum is σ = 1178048288582. Its totient is φ = 1178048288580.

The previous prime is 1178048288579. The next prime is 1178048288611. The reversal of 1178048288581 is 1858828408711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 856605780900 + 321442507681 = 925530^2 + 566959^2 .

It is a cyclic number.

It is not a de Polignac number, because 1178048288581 - 2¹ = 1178048288579 is a prime.

It is a super-2 number, since 2×1178048288581² (a number of 25 digits) contains 22 as substring.

Together with 1178048288579, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1178048588581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 589024144290 + 589024144291.

It is an arithmetic number, because the mean of its divisors is an integer number (589024144291).

Almost surely, 2^{1178048288581} is an apocalyptic number.

It is an amenable number.

1178048288581 is a deficient number, since it is larger than the sum of its proper divisors (1).

1178048288581 is an equidigital number, since it uses as much as digits as its factorization.

1178048288581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9175040, while the sum is 61.

The spelling of 1178048288581 in words is "one trillion, one hundred seventy-eight billion, forty-eight million, two hundred eighty-eight thousand, five hundred eighty-one".