43018223930797 has 2 divisors, whose sum is σ = 43018223930798. Its totient is φ = 43018223930796.

The previous prime is 43018223930779. The next prime is 43018223930809. The reversal of 43018223930797 is 79703932281034.

It is a happy number.

Together with previous prime (43018223930779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32212106176041 + 10806117754756 = 5675571^2 + 3287266^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43018223930797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43018223930197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21509111965398 + 21509111965399.

It is an arithmetic number, because the mean of its divisors is an integer number (21509111965399).

Almost surely, 2^{43018223930797} is an apocalyptic number.

It is an amenable number.

43018223930797 is a deficient number, since it is larger than the sum of its proper divisors (1).

43018223930797 is an equidigital number, since it uses as much as digits as its factorization.

43018223930797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13716864, while the sum is 58.

The spelling of 43018223930797 in words is "forty-three trillion, eighteen billion, two hundred twenty-three million, nine hundred thirty thousand, seven hundred ninety-seven".