12885609619 has 2 divisors, whose sum is σ = 12885609620. Its totient is φ = 12885609618.

The previous prime is 12885609599. The next prime is 12885609623. The reversal of 12885609619 is 91690658821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12885609619 - 2⁵ = 12885609587 is a prime.

It is a super-2 number, since 2×12885609619² (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 12885609619.

It is not a weakly prime, because it can be changed into another prime (12885639619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6442804809 + 6442804810.

It is an arithmetic number, because the mean of its divisors is an integer number (6442804810).

Almost surely, 2^12885609619 is an apocalyptic number.

12885609619 is a deficient number, since it is larger than the sum of its proper divisors (1).

12885609619 is an equidigital number, since it uses as much as digits as its factorization.

12885609619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 55.

The spelling of 12885609619 in words is "twelve billion, eight hundred eighty-five million, six hundred nine thousand, six hundred nineteen".