12421514804 has 12 divisors (see below), whose sum is σ = 21738607044. Its totient is φ = 6210484224.

The previous prime is 12421514789. The next prime is 12421514821. The reversal of 12421514804 is 40841512421.

It can be written as a sum of positive squares in 2 ways, for example, as 5356776100 + 7064738704 = 73190^2 + 84052^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61364 + ... + 169140.

It is an arithmetic number, because the mean of its divisors is an integer number (1811550587).

Almost surely, 2^12421514804 is an apocalyptic number.

It is an amenable number.

12421514804 is a deficient number, since it is larger than the sum of its proper divisors (9317092240).

12421514804 is a wasteful number, since it uses less digits than its factorization.

12421514804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136594 (or 136592 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The spelling of 12421514804 in words is "twelve billion, four hundred twenty-one million, five hundred fourteen thousand, eight hundred four".