12409089874 has 4 divisors (see below), whose sum is σ = 18613634814. Its totient is φ = 6204544936.

The previous prime is 12409089841. The next prime is 12409089877. The reversal of 12409089874 is 47898090421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47898090421 = 31 ⋅1545099691.

It can be written as a sum of positive squares in only one way, i.e., 11511787849 + 897302025 = 107293^2 + 29955^2 .

It is not an unprimeable number, because it can be changed into a prime (12409089877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3102272467 + ... + 3102272470.

Almost surely, 2^12409089874 is an apocalyptic number.

12409089874 is a deficient number, since it is larger than the sum of its proper divisors (6204544940).

12409089874 is an equidigital number, since it uses as much as digits as its factorization.

12409089874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6204544939.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 12409089874 in words is "twelve billion, four hundred nine million, eighty-nine thousand, eight hundred seventy-four".