12426924621 has 8 divisors (see below), whose sum is σ = 16954564000. Its totient is φ = 8091950832.

The previous prime is 12426924617. The next prime is 12426924659. The reversal of 12426924621 is 12642962421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12426924621 - 2² = 12426924617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12426924621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12426924121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48166246 + ... + 48166503.

It is an arithmetic number, because the mean of its divisors is an integer number (2119320500).

Almost surely, 2^12426924621 is an apocalyptic number.

It is an amenable number.

12426924621 is a deficient number, since it is larger than the sum of its proper divisors (4527639379).

12426924621 is an equidigital number, since it uses as much as digits as its factorization.

12426924621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96332795.

The product of its digits is 82944, while the sum is 39.

The spelling of 12426924621 in words is "twelve billion, four hundred twenty-six million, nine hundred twenty-four thousand, six hundred twenty-one".