43438711171 has 2 divisors, whose sum is σ = 43438711172. Its totient is φ = 43438711170.

The previous prime is 43438711123. The next prime is 43438711207. The reversal of 43438711171 is 17111783434.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43438711171 - 2¹⁵ = 43438678403 is a prime.

It is not a weakly prime, because it can be changed into another prime (43438711471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21719355585 + 21719355586.

It is an arithmetic number, because the mean of its divisors is an integer number (21719355586).

Almost surely, 2^43438711171 is an apocalyptic number.

43438711171 is a deficient number, since it is larger than the sum of its proper divisors (1).

43438711171 is an equidigital number, since it uses as much as digits as its factorization.

43438711171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 40.

The spelling of 43438711171 in words is "forty-three billion, four hundred thirty-eight million, seven hundred eleven thousand, one hundred seventy-one".