11806466869 has 2 divisors, whose sum is σ = 11806466870. Its totient is φ = 11806466868.

The previous prime is 11806466851. The next prime is 11806466897. The reversal of 11806466869 is 96866460811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11761402500 + 45064369 = 108450^2 + 6713^2 .

It is a cyclic number.

It is not a de Polignac number, because 11806466869 - 2⁷ = 11806466741 is a prime.

It is a super-2 number, since 2×11806466869² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11806466669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5903233434 + 5903233435.

It is an arithmetic number, because the mean of its divisors is an integer number (5903233435).

Almost surely, 2^11806466869 is an apocalyptic number.

It is an amenable number.

11806466869 is a deficient number, since it is larger than the sum of its proper divisors (1).

11806466869 is an equidigital number, since it uses as much as digits as its factorization.

11806466869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 11806466869 in words is "eleven billion, eight hundred six million, four hundred sixty-six thousand, eight hundred sixty-nine".