20006719189753 has 2 divisors, whose sum is σ = 20006719189754. Its totient is φ = 20006719189752.

The previous prime is 20006719189739. The next prime is 20006719189927. The reversal of 20006719189753 is 35798191760002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11508398114409 + 8498321075344 = 3392403^2 + 2915188^2 .

It is a cyclic number.

It is not a de Polignac number, because 20006719189753 - 2⁹ = 20006719189241 is a prime.

It is not a weakly prime, because it can be changed into another prime (20006719189453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10003359594876 + 10003359594877.

It is an arithmetic number, because the mean of its divisors is an integer number (10003359594877).

Almost surely, 2^{20006719189753} is an apocalyptic number.

It is an amenable number.

20006719189753 is a deficient number, since it is larger than the sum of its proper divisors (1).

20006719189753 is an equidigital number, since it uses as much as digits as its factorization.

20006719189753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5715360, while the sum is 58.

The spelling of 20006719189753 in words is "twenty trillion, six billion, seven hundred nineteen million, one hundred eighty-nine thousand, seven hundred fifty-three".