43351144508429 has 2 divisors, whose sum is σ = 43351144508430. Its totient is φ = 43351144508428.

The previous prime is 43351144508417. The next prime is 43351144508443. The reversal of 43351144508429 is 92480544115334.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42532544803204 + 818599705225 = 6521698^2 + 904765^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43351144508429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43351144501429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21675572254214 + 21675572254215.

It is an arithmetic number, because the mean of its divisors is an integer number (21675572254215).

Almost surely, 2^{43351144508429} is an apocalyptic number.

It is an amenable number.

43351144508429 is a deficient number, since it is larger than the sum of its proper divisors (1).

43351144508429 is an equidigital number, since it uses as much as digits as its factorization.

43351144508429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8294400, while the sum is 53.

The spelling of 43351144508429 in words is "forty-three trillion, three hundred fifty-one billion, one hundred forty-four million, five hundred eight thousand, four hundred twenty-nine".