9657190190449 has 2 divisors, whose sum is σ = 9657190190450. Its totient is φ = 9657190190448.

The previous prime is 9657190190393. The next prime is 9657190190513. The reversal of 9657190190449 is 9440910917569.

It is an a-pointer prime, because the next prime (9657190190513) can be obtained adding 9657190190449 to its sum of digits (64).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9008359940449 + 648830250000 = 3001393^2 + 805500^2 .

It is an emirp because it is prime and its reverse (9440910917569) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9657190190449 - 2¹⁹ = 9657189666161 is a prime.

It is a super-2 number, since 2×9657190190449² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9657190100449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4828595095224 + 4828595095225.

It is an arithmetic number, because the mean of its divisors is an integer number (4828595095225).

Almost surely, 2^{9657190190449} is an apocalyptic number.

It is an amenable number.

9657190190449 is a deficient number, since it is larger than the sum of its proper divisors (1).

9657190190449 is an equidigital number, since it uses as much as digits as its factorization.

9657190190449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22044960, while the sum is 64.

The spelling of 9657190190449 in words is "nine trillion, six hundred fifty-seven billion, one hundred ninety million, one hundred ninety thousand, four hundred forty-nine".