12454662621 has 16 divisors (see below), whose sum is σ = 18508478400. Its totient is φ = 7403390208.

The previous prime is 12454662569. The next prime is 12454662667. The reversal of 12454662621 is 12626645421.

It is not a de Polignac number, because 12454662621 - 2⁹ = 12454662109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12454662621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12454662721) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 6425586 + ... + 6427523.

It is an arithmetic number, because the mean of its divisors is an integer number (1156779900).

Almost surely, 2^12454662621 is an apocalyptic number.

It is an amenable number.

12454662621 is a deficient number, since it is larger than the sum of its proper divisors (6053815779).

12454662621 is a wasteful number, since it uses less digits than its factorization.

12454662621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12853148.

The product of its digits is 138240, while the sum is 39.

The spelling of 12454662621 in words is "twelve billion, four hundred fifty-four million, six hundred sixty-two thousand, six hundred twenty-one".