5778110861 has 2 divisors, whose sum is σ = 5778110862. Its totient is φ = 5778110860.

The previous prime is 5778110851. The next prime is 5778110893. The reversal of 5778110861 is 1680118775.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5072145961 + 705964900 = 71219^2 + 26570^2 .

It is a cyclic number.

It is not a de Polignac number, because 5778110861 - 2¹⁰ = 5778109837 is a prime.

It is a super-2 number, since 2×5778110861² = 66773130244012322642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5778110831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2889055430 + 2889055431.

It is an arithmetic number, because the mean of its divisors is an integer number (2889055431).

Almost surely, 2^5778110861 is an apocalyptic number.

It is an amenable number.

5778110861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5778110861 is an equidigital number, since it uses as much as digits as its factorization.

5778110861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 44.

The square root of 5778110861 is about 76013.8859748665. The cubic root of 5778110861 is about 1794.4386852473.

The spelling of 5778110861 in words is "five billion, seven hundred seventy-eight million, one hundred ten thousand, eight hundred sixty-one".