34478239793 has 2 divisors, whose sum is σ = 34478239794. Its totient is φ = 34478239792.

The previous prime is 34478239753. The next prime is 34478239823. The reversal of 34478239793 is 39793287443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28719403024 + 5758836769 = 169468^2 + 75887^2 .

It is a cyclic number.

It is not a de Polignac number, because 34478239793 - 2²⁴ = 34461462577 is a prime.

It is not a weakly prime, because it can be changed into another prime (34478239753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17239119896 + 17239119897.

It is an arithmetic number, because the mean of its divisors is an integer number (17239119897).

Almost surely, 2^34478239793 is an apocalyptic number.

It is an amenable number.

34478239793 is a deficient number, since it is larger than the sum of its proper divisors (1).

34478239793 is an equidigital number, since it uses as much as digits as its factorization.

34478239793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27433728, while the sum is 59.

The spelling of 34478239793 in words is "thirty-four billion, four hundred seventy-eight million, two hundred thirty-nine thousand, seven hundred ninety-three".