43194459479 has 2 divisors, whose sum is σ = 43194459480. Its totient is φ = 43194459478.

The previous prime is 43194459463. The next prime is 43194459481. The reversal of 43194459479 is 97495449134.

It is a happy number.

43194459479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43194459479 - 2⁴ = 43194459463 is a prime.

It is a super-2 number, since 2×43194459479² (a number of 22 digits) contains 22 as substring.

Together with 43194459481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43194459439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21597229739 + 21597229740.

It is an arithmetic number, because the mean of its divisors is an integer number (21597229740).

Almost surely, 2^43194459479 is an apocalyptic number.

43194459479 is a deficient number, since it is larger than the sum of its proper divisors (1).

43194459479 is an equidigital number, since it uses as much as digits as its factorization.

43194459479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19595520, while the sum is 59.

The spelling of 43194459479 in words is "forty-three billion, one hundred ninety-four million, four hundred fifty-nine thousand, four hundred seventy-nine".