43245203489 has 2 divisors, whose sum is σ = 43245203490. Its totient is φ = 43245203488.

The previous prime is 43245203437. The next prime is 43245203513. The reversal of 43245203489 is 98430254234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30697843264 + 12547360225 = 175208^2 + 112015^2 .

It is a cyclic number.

It is not a de Polignac number, because 43245203489 - 2¹⁶ = 43245137953 is a prime.

It is not a weakly prime, because it can be changed into another prime (43245203429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21622601744 + 21622601745.

It is an arithmetic number, because the mean of its divisors is an integer number (21622601745).

Almost surely, 2^43245203489 is an apocalyptic number.

It is an amenable number.

43245203489 is a deficient number, since it is larger than the sum of its proper divisors (1).

43245203489 is an equidigital number, since it uses as much as digits as its factorization.

43245203489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 43245203489 in words is "forty-three billion, two hundred forty-five million, two hundred three thousand, four hundred eighty-nine".