25343422434389 has 2 divisors, whose sum is σ = 25343422434390. Its totient is φ = 25343422434388.

The previous prime is 25343422434313. The next prime is 25343422434457. The reversal of 25343422434389 is 98343422434352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20314356051025 + 5029066383364 = 4507145^2 + 2242558^2 .

It is a cyclic number.

It is not a de Polignac number, because 25343422434389 - 2⁴⁴ = 7751236389973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25343422434289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12671711217194 + 12671711217195.

It is an arithmetic number, because the mean of its divisors is an integer number (12671711217195).

Almost surely, 2^{25343422434389} is an apocalyptic number.

It is an amenable number.

25343422434389 is a deficient number, since it is larger than the sum of its proper divisors (1).

25343422434389 is an equidigital number, since it uses as much as digits as its factorization.

25343422434389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 59719680, while the sum is 56.

The spelling of 25343422434389 in words is "twenty-five trillion, three hundred forty-three billion, four hundred twenty-two million, four hundred thirty-four thousand, three hundred eighty-nine".