20013653426219 has 2 divisors, whose sum is σ = 20013653426220. Its totient is φ = 20013653426218.

The previous prime is 20013653426171. The next prime is 20013653426279. The reversal of 20013653426219 is 91262435631002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20013653426219 - 2³⁶ = 19944933949483 is a prime.

It is a super-2 number, since 2×20013653426219² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20013653426219.

It is not a weakly prime, because it can be changed into another prime (20013653426279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006826713109 + 10006826713110.

It is an arithmetic number, because the mean of its divisors is an integer number (10006826713110).

Almost surely, 2^{20013653426219} is an apocalyptic number.

20013653426219 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013653426219 is an equidigital number, since it uses as much as digits as its factorization.

20013653426219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 20013653426219 in words is "twenty trillion, thirteen billion, six hundred fifty-three million, four hundred twenty-six thousand, two hundred nineteen".