12421236976 has 20 divisors (see below), whose sum is σ = 24078283792. Its totient is φ = 6207486336.

The previous prime is 12421236973. The next prime is 12421236977. The reversal of 12421236976 is 67963212421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421236973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162876 + ... + 226651.

Almost surely, 2^12421236976 is an apocalyptic number.

12421236976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12421236976 is a deficient number, since it is larger than the sum of its proper divisors (11657046816).

12421236976 is a wasteful number, since it uses less digits than its factorization.

12421236976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391528 (or 391522 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The spelling of 12421236976 in words is "twelve billion, four hundred twenty-one million, two hundred thirty-six thousand, nine hundred seventy-six".