126433334621 has 4 divisors (see below), whose sum is σ = 137927274144. Its totient is φ = 114939395100.

The previous prime is 126433334617. The next prime is 126433334623.

126433334621 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 126433334621 - 2² = 126433334617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126433334623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5746969745 + ... + 5746969766.

It is an arithmetic number, because the mean of its divisors is an integer number (34481818536).

Almost surely, 2^126433334621 is an apocalyptic number.

126433334621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126433334621 is a deficient number, since it is larger than the sum of its proper divisors (11493939523).

126433334621 is a wasteful number, since it uses less digits than its factorization.

126433334621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11493939522.

The product of its digits is 186624, while the sum is 38.

The spelling of 126433334621 in words is "one hundred twenty-six billion, four hundred thirty-three million, three hundred thirty-four thousand, six hundred twenty-one".