12421988466 has 32 divisors (see below), whose sum is σ = 25558165248. Its totient is φ = 4022006400.

The previous prime is 12421988459. The next prime is 12421988497. The reversal of 12421988466 is 66488912421.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 86871 + ... + 179973.

It is an arithmetic number, because the mean of its divisors is an integer number (798692664).

Almost surely, 2^12421988466 is an apocalyptic number.

12421988466 is an abundant number, since it is smaller than the sum of its proper divisors (13136176782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12421988466 is a wasteful number, since it uses less digits than its factorization.

12421988466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93746.

The product of its digits is 1327104, while the sum is 51.

The spelling of 12421988466 in words is "twelve billion, four hundred twenty-one million, nine hundred eighty-eight thousand, four hundred sixty-six".