126443344621 has 8 divisors (see below), whose sum is σ = 138510554688. Its totient is φ = 114471528000.

The previous prime is 126443344619. The next prime is 126443344661.

126443344621 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 126443344621 - 2¹ = 126443344619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126443344661) 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, 23845585 + ... + 23850886.

It is an arithmetic number, because the mean of its divisors is an integer number (17313819336).

Almost surely, 2^126443344621 is an apocalyptic number.

126443344621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126443344621 is a deficient number, since it is larger than the sum of its proper divisors (12067210067).

126443344621 is a wasteful number, since it uses less digits than its factorization.

126443344621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47696723.

The product of its digits is 331776, while the sum is 40.

The spelling of 126443344621 in words is "one hundred twenty-six billion, four hundred forty-three million, three hundred forty-four thousand, six hundred twenty-one".