12408489406 has 4 divisors (see below), whose sum is σ = 18612734112. Its totient is φ = 6204244702.

The previous prime is 12408489389. The next prime is 12408489427. The reversal of 12408489406 is 60498480421.

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

It is a congruent number.

It is an unprimeable number.

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, 3102122350 + ... + 3102122353.

It is an arithmetic number, because the mean of its divisors is an integer number (4653183528).

Almost surely, 2^12408489406 is an apocalyptic number.

12408489406 is a deficient number, since it is larger than the sum of its proper divisors (6204244706).

12408489406 is an equidigital number, since it uses as much as digits as its factorization.

12408489406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6204244705.

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 12408489406 in words is "twelve billion, four hundred eight million, four hundred eighty-nine thousand, four hundred six".