9869496493 has 2 divisors, whose sum is σ = 9869496494. Its totient is φ = 9869496492.

The previous prime is 9869496473. The next prime is 9869496521. The reversal of 9869496493 is 3946949689.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5494070884 + 4375425609 = 74122^2 + 66147^2 .

It is a cyclic number.

It is not a de Polignac number, because 9869496493 - 2⁹ = 9869495981 is a prime.

It is a super-2 number, since 2×9869496493² (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 (9869496433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4934748246 + 4934748247.

It is an arithmetic number, because the mean of its divisors is an integer number (4934748247).

Almost surely, 2^9869496493 is an apocalyptic number.

It is an amenable number.

9869496493 is a deficient number, since it is larger than the sum of its proper divisors (1).

9869496493 is an equidigital number, since it uses as much as digits as its factorization.

9869496493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90699264, while the sum is 67.

The square root of 9869496493 is about 99345.3395635648. The cubic root of 9869496493 is about 2145.0215796120.

The spelling of 9869496493 in words is "nine billion, eight hundred sixty-nine million, four hundred ninety-six thousand, four hundred ninety-three".