8354788861 has 2 divisors, whose sum is σ = 8354788862. Its totient is φ = 8354788860.

The previous prime is 8354788829. The next prime is 8354788913. The reversal of 8354788861 is 1688874538.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6572344900 + 1782443961 = 81070^2 + 42219^2 .

It is a cyclic number.

It is not a de Polignac number, because 8354788861 - 2⁵ = 8354788829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8354788796 and 8354788805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8354788361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4177394430 + 4177394431.

It is an arithmetic number, because the mean of its divisors is an integer number (4177394431).

Almost surely, 2^8354788861 is an apocalyptic number.

It is an amenable number.

8354788861 is a deficient number, since it is larger than the sum of its proper divisors (1).

8354788861 is an equidigital number, since it uses as much as digits as its factorization.

8354788861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10321920, while the sum is 58.

The square root of 8354788861 is about 91404.5341380831. The cubic root of 8354788861 is about 2029.1391320972.

The spelling of 8354788861 in words is "eight billion, three hundred fifty-four million, seven hundred eighty-eight thousand, eight hundred sixty-one".