43126605659 has 2 divisors, whose sum is σ = 43126605660. Its totient is φ = 43126605658.

The previous prime is 43126605569. The next prime is 43126605661. The reversal of 43126605659 is 95650662134.

43126605659 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (43126605569) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43126605659 - 2¹² = 43126601563 is a prime.

Together with 43126605661, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43126605259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21563302829 + 21563302830.

It is an arithmetic number, because the mean of its divisors is an integer number (21563302830).

Almost surely, 2^43126605659 is an apocalyptic number.

43126605659 is a deficient number, since it is larger than the sum of its proper divisors (1).

43126605659 is an equidigital number, since it uses as much as digits as its factorization.

43126605659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 43126605659 in words is "forty-three billion, one hundred twenty-six million, six hundred five thousand, six hundred fifty-nine".