20345425653019 has 2 divisors, whose sum is σ = 20345425653020. Its totient is φ = 20345425653018.

The previous prime is 20345425653011. The next prime is 20345425653029. The reversal of 20345425653019 is 91035652454302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20345425653019 - 2³ = 20345425653011 is a prime.

It is a super-3 number, since 3×20345425653019³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (20345425653011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10172712826509 + 10172712826510.

It is an arithmetic number, because the mean of its divisors is an integer number (10172712826510).

Almost surely, 2^{20345425653019} is an apocalyptic number.

20345425653019 is a deficient number, since it is larger than the sum of its proper divisors (1).

20345425653019 is an equidigital number, since it uses as much as digits as its factorization.

20345425653019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888000, while the sum is 49.

The spelling of 20345425653019 in words is "twenty trillion, three hundred forty-five billion, four hundred twenty-five million, six hundred fifty-three thousand, nineteen".