1195887313669 has 2 divisors, whose sum is σ = 1195887313670. Its totient is φ = 1195887313668.

The previous prime is 1195887313651. The next prime is 1195887313679. The reversal of 1195887313669 is 9663137885911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1032788452644 + 163098861025 = 1016262^2 + 403855^2 .

It is an emirp because it is prime and its reverse (9663137885911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1195887313669 - 2¹³ = 1195887305477 is a prime.

It is a super-2 number, since 2×1195887313669² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1195887313679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 597943656834 + 597943656835.

It is an arithmetic number, because the mean of its divisors is an integer number (597943656835).

Almost surely, 2^{1195887313669} is an apocalyptic number.

It is an amenable number.

1195887313669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1195887313669 is an equidigital number, since it uses as much as digits as its factorization.

1195887313669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58786560, while the sum is 67.

The spelling of 1195887313669 in words is "one trillion, one hundred ninety-five billion, eight hundred eighty-seven million, three hundred thirteen thousand, six hundred sixty-nine".