43542430193293 has 2 divisors, whose sum is σ = 43542430193294. Its totient is φ = 43542430193292.

The previous prime is 43542430193209. The next prime is 43542430193333. The reversal of 43542430193293 is 39239103424534.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40751332040329 + 2791098152964 = 6383677^2 + 1670658^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43542430193293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43542430193293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43542430193693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21771215096646 + 21771215096647.

It is an arithmetic number, because the mean of its divisors is an integer number (21771215096647).

Almost surely, 2^{43542430193293} is an apocalyptic number.

It is an amenable number.

43542430193293 is a deficient number, since it is larger than the sum of its proper divisors (1).

43542430193293 is an equidigital number, since it uses as much as digits as its factorization.

43542430193293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8398080, while the sum is 52.

The spelling of 43542430193293 in words is "forty-three trillion, five hundred forty-two billion, four hundred thirty million, one hundred ninety-three thousand, two hundred ninety-three".