13196427866 has 4 divisors (see below), whose sum is σ = 19794641802. Its totient is φ = 6598213932.

The previous prime is 13196427841. The next prime is 13196427869. The reversal of 13196427866 is 66872469131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7402021225 + 5794406641 = 86035^2 + 76121^2 .

It is not an unprimeable number, because it can be changed into a prime (13196427869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3299106965 + ... + 3299106968.

Almost surely, 2^13196427866 is an apocalyptic number.

13196427866 is a deficient number, since it is larger than the sum of its proper divisors (6598213936).

13196427866 is an equidigital number, since it uses as much as digits as its factorization.

13196427866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6598213935.

The product of its digits is 2612736, while the sum is 53.

The spelling of 13196427866 in words is "thirteen billion, one hundred ninety-six million, four hundred twenty-seven thousand, eight hundred sixty-six".