9860349869 has 2 divisors, whose sum is σ = 9860349870. Its totient is φ = 9860349868.

The previous prime is 9860349799. The next prime is 9860349881. The reversal of 9860349869 is 9689430689.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9714664969 + 145684900 = 98563^2 + 12070^2 .

It is a cyclic number.

It is not a de Polignac number, because 9860349869 - 2¹⁶ = 9860284333 is a prime.

It is a super-2 number, since 2×9860349869² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9860319869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4930174934 + 4930174935.

It is an arithmetic number, because the mean of its divisors is an integer number (4930174935).

Almost surely, 2^9860349869 is an apocalyptic number.

It is an amenable number.

9860349869 is a deficient number, since it is larger than the sum of its proper divisors (1).

9860349869 is an equidigital number, since it uses as much as digits as its factorization.

9860349869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20155392, while the sum is 62.

The square root of 9860349869 is about 99299.2944033340. The cubic root of 9860349869 is about 2144.3587369535.

The spelling of 9860349869 in words is "nine billion, eight hundred sixty million, three hundred forty-nine thousand, eight hundred sixty-nine".