9663126622249 has 3 divisors (see below), whose sum is σ = 9663129730807. Its totient is φ = 9663123513692.

The previous prime is 9663126622199. The next prime is 9663126622283. The reversal of 9663126622249 is 9422266213669.

The square root of 9663126622249 is 3108557.

It is a perfect power (a square), and thus also a powerful number.

9663126622249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 9268828025625 + 394298596624 = 3044475^2 + 627932^2 .

It is not a de Polignac number, because 9663126622249 - 2²³ = 9663118233641 is a prime.

It is a super-2 number, since 2×9663126622249² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9663126622193 and 9663126622202.

It is not an unprimeable number, because it can be changed into a prime (9663126622349) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1554279 + ... + 4662835.

Almost surely, 2^{9663126622249} is an apocalyptic number.

9663126622249 is the 3108557-th square number.

9663126622249 is the 1554279-th centered octagonal number.

It is an amenable number.

9663126622249 is a deficient number, since it is larger than the sum of its proper divisors (3108558).

9663126622249 is an frugal number, since it uses more digits than its factorization.

9663126622249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6217114 (or 3108557 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 58.

The spelling of 9663126622249 in words is "nine trillion, six hundred sixty-three billion, one hundred twenty-six million, six hundred twenty-two thousand, two hundred forty-nine".