20426068248259 has 2 divisors, whose sum is σ = 20426068248260. Its totient is φ = 20426068248258.

The previous prime is 20426068248119. The next prime is 20426068248277. The reversal of 20426068248259 is 95284286062402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20426068248259 - 2²¹ = 20426066151107 is a prime.

It is not a weakly prime, because it can be changed into another prime (20426069248259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10213034124129 + 10213034124130.

It is an arithmetic number, because the mean of its divisors is an integer number (10213034124130).

Almost surely, 2^{20426068248259} is an apocalyptic number.

20426068248259 is a deficient number, since it is larger than the sum of its proper divisors (1).

20426068248259 is an equidigital number, since it uses as much as digits as its factorization.

20426068248259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26542080, while the sum is 58.

The spelling of 20426068248259 in words is "twenty trillion, four hundred twenty-six billion, sixty-eight million, two hundred forty-eight thousand, two hundred fifty-nine".