11860994869 has 2 divisors, whose sum is σ = 11860994870. Its totient is φ = 11860994868.

The previous prime is 11860994861. The next prime is 11860994927. The reversal of 11860994869 is 96849906811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6522500644 + 5338494225 = 80762^2 + 73065^2 .

It is a cyclic number.

It is not a de Polignac number, because 11860994869 - 2³ = 11860994861 is a prime.

It is a super-2 number, since 2×11860994869² (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 (11860994861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5930497434 + 5930497435.

It is an arithmetic number, because the mean of its divisors is an integer number (5930497435).

Almost surely, 2^11860994869 is an apocalyptic number.

It is an amenable number.

11860994869 is a deficient number, since it is larger than the sum of its proper divisors (1).

11860994869 is an equidigital number, since it uses as much as digits as its factorization.

11860994869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6718464, while the sum is 61.

The spelling of 11860994869 in words is "eleven billion, eight hundred sixty million, nine hundred ninety-four thousand, eight hundred sixty-nine".