9649111369 has 2 divisors, whose sum is σ = 9649111370. Its totient is φ = 9649111368.

The previous prime is 9649111357. The next prime is 9649111387. The reversal of 9649111369 is 9631119469.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9285827769 + 363283600 = 96363^2 + 19060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9649111369 is a prime.

It is a super-2 number, since 2×9649111369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9649111319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4824555684 + 4824555685.

It is an arithmetic number, because the mean of its divisors is an integer number (4824555685).

Almost surely, 2^9649111369 is an apocalyptic number.

It is an amenable number.

9649111369 is a deficient number, since it is larger than the sum of its proper divisors (1).

9649111369 is an equidigital number, since it uses as much as digits as its factorization.

9649111369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 314928, while the sum is 49.

The square root of 9649111369 is about 98229.8904051104. The cubic root of 9649111369 is about 2128.9351851874.

The spelling of 9649111369 in words is "nine billion, six hundred forty-nine million, one hundred eleven thousand, three hundred sixty-nine".