11864334689 has 2 divisors, whose sum is σ = 11864334690. Its totient is φ = 11864334688.

The previous prime is 11864334661. The next prime is 11864334767. The reversal of 11864334689 is 98643346811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8692392289 + 3171942400 = 93233^2 + 56320^2 .

It is a cyclic number.

It is not a de Polignac number, because 11864334689 - 2¹² = 11864330593 is a prime.

It is a super-2 number, since 2×11864334689² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11864334689.

It is not a weakly prime, because it can be changed into another prime (11864334649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5932167344 + 5932167345.

It is an arithmetic number, because the mean of its divisors is an integer number (5932167345).

Almost surely, 2^11864334689 is an apocalyptic number.

It is an amenable number.

11864334689 is a deficient number, since it is larger than the sum of its proper divisors (1).

11864334689 is an equidigital number, since it uses as much as digits as its factorization.

11864334689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2985984, while the sum is 53.

The spelling of 11864334689 in words is "eleven billion, eight hundred sixty-four million, three hundred thirty-four thousand, six hundred eighty-nine".