43448193673 has 2 divisors, whose sum is σ = 43448193674. Its totient is φ = 43448193672.

The previous prime is 43448193577. The next prime is 43448193787. The reversal of 43448193673 is 37639184434.

43448193673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38630723209 + 4817470464 = 196547^2 + 69408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43448193673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43448193673.

It is not a weakly prime, because it can be changed into another prime (43448190673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21724096836 + 21724096837.

It is an arithmetic number, because the mean of its divisors is an integer number (21724096837).

Almost surely, 2^43448193673 is an apocalyptic number.

It is an amenable number.

43448193673 is a deficient number, since it is larger than the sum of its proper divisors (1).

43448193673 is an equidigital number, since it uses as much as digits as its factorization.

43448193673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 52.

The spelling of 43448193673 in words is "forty-three billion, four hundred forty-eight million, one hundred ninety-three thousand, six hundred seventy-three".