1147268619869 has 2 divisors, whose sum is σ = 1147268619870. Its totient is φ = 1147268619868.

The previous prime is 1147268619793. The next prime is 1147268619883. The reversal of 1147268619869 is 9689168627411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 770594287225 + 376674332644 = 877835^2 + 613738^2 .

It is a cyclic number.

It is not a de Polignac number, because 1147268619869 - 2²⁰ = 1147267571293 is a prime.

It is a super-2 number, since 2×1147268619869² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1147268619799 and 1147268619808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1147268619269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573634309934 + 573634309935.

It is an arithmetic number, because the mean of its divisors is an integer number (573634309935).

Almost surely, 2^{1147268619869} is an apocalyptic number.

It is an amenable number.

1147268619869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147268619869 is an equidigital number, since it uses as much as digits as its factorization.

1147268619869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62705664, while the sum is 68.

The spelling of 1147268619869 in words is "one trillion, one hundred forty-seven billion, two hundred sixty-eight million, six hundred nineteen thousand, eight hundred sixty-nine".