126343343343621 has 64 divisors (see below), whose sum is σ = 188607283729920. Its totient is φ = 74936837606400.

The previous prime is 126343343343617. The next prime is 126343343343647.

126343343343621 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 126343343343621 - 2² = 126343343343617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126343343343691) 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 63 ways as a sum of consecutive naturals, for example, 970230 + ... + 15925703.

It is an arithmetic number, because the mean of its divisors is an integer number (2946988808280).

Almost surely, 2^{126343343343621} is an apocalyptic number.

It is an amenable number.

126343343343621 is a deficient number, since it is larger than the sum of its proper divisors (62263940386299).

126343343343621 is a wasteful number, since it uses less digits than its factorization.

126343343343621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16896126.

The product of its digits is 6718464, while the sum is 48.

The spelling of 126343343343621 in words is "one hundred twenty-six trillion, three hundred forty-three billion, three hundred forty-three million, three hundred forty-three thousand, six hundred twenty-one".