43445625545089 has 2 divisors, whose sum is σ = 43445625545090. Its totient is φ = 43445625545088.

The previous prime is 43445625544967. The next prime is 43445625545107. The reversal of 43445625545089 is 98054552654434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42657422500225 + 788203044864 = 6531265^2 + 887808^2 .

It is a cyclic number.

It is not a de Polignac number, because 43445625545089 - 2⁴³ = 34649532522881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43445625545089.

It is not a weakly prime, because it can be changed into another prime (43445625545389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21722812772544 + 21722812772545.

It is an arithmetic number, because the mean of its divisors is an integer number (21722812772545).

Almost surely, 2^{43445625545089} is an apocalyptic number.

It is an amenable number.

43445625545089 is a deficient number, since it is larger than the sum of its proper divisors (1).

43445625545089 is an equidigital number, since it uses as much as digits as its factorization.

43445625545089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720000, while the sum is 64.

The spelling of 43445625545089 in words is "forty-three trillion, four hundred forty-five billion, six hundred twenty-five million, five hundred forty-five thousand, eighty-nine".