43138364267 has 2 divisors, whose sum is σ = 43138364268. Its totient is φ = 43138364266.

The previous prime is 43138364249. The next prime is 43138364273. The reversal of 43138364267 is 76246383134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43138364267 - 2⁸ = 43138364011 is a prime.

It is not a weakly prime, because it can be changed into another prime (43138364167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21569182133 + 21569182134.

It is an arithmetic number, because the mean of its divisors is an integer number (21569182134).

Almost surely, 2^43138364267 is an apocalyptic number.

43138364267 is a deficient number, since it is larger than the sum of its proper divisors (1).

43138364267 is an equidigital number, since it uses as much as digits as its factorization.

43138364267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 47.

The spelling of 43138364267 in words is "forty-three billion, one hundred thirty-eight million, three hundred sixty-four thousand, two hundred sixty-seven".