1181379707069 has 8 divisors (see below), whose sum is σ = 1183511180280. Its totient is φ = 1179248428800.

The previous prime is 1181379707063. The next prime is 1181379707129. The reversal of 1181379707069 is 9607079731811.

It can be written as a sum of positive squares in 4 ways, for example, as 152382491044 + 1028997216025 = 390362^2 + 1014395^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1181379707069 is a prime.

It is a super-2 number, since 2×1181379707069² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1181379706999 and 1181379707017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1181379707063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18164729 + ... + 18229649.

It is an arithmetic number, because the mean of its divisors is an integer number (147938897535).

Almost surely, 2^{1181379707069} is an apocalyptic number.

It is an amenable number.

1181379707069 is a deficient number, since it is larger than the sum of its proper divisors (2131473211).

1181379707069 is an equidigital number, since it uses as much as digits as its factorization.

1181379707069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97471.

The product of its (nonzero) digits is 4000752, while the sum is 59.

The spelling of 1181379707069 in words is "one trillion, one hundred eighty-one billion, three hundred seventy-nine million, seven hundred seven thousand, sixty-nine".