7854334489 has 2 divisors, whose sum is σ = 7854334490. Its totient is φ = 7854334488.

The previous prime is 7854334273. The next prime is 7854334529. The reversal of 7854334489 is 9844334587.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6816979225 + 1037355264 = 82565^2 + 32208^2 .

It is a cyclic number.

It is not a de Polignac number, because 7854334489 - 2³¹ = 5706850841 is a prime.

It is a super-2 number, since 2×7854334489² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7854334889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3927167244 + 3927167245.

It is an arithmetic number, because the mean of its divisors is an integer number (3927167245).

Almost surely, 2^7854334489 is an apocalyptic number.

It is an amenable number.

7854334489 is a deficient number, since it is larger than the sum of its proper divisors (1).

7854334489 is an equidigital number, since it uses as much as digits as its factorization.

7854334489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11612160, while the sum is 55.

The square root of 7854334489 is about 88624.6832942155. The cubic root of 7854334489 is about 1987.7867778320.

The spelling of 7854334489 in words is "seven billion, eight hundred fifty-four million, three hundred thirty-four thousand, four hundred eighty-nine".