19743550886159 has 2 divisors, whose sum is σ = 19743550886160. Its totient is φ = 19743550886158.

The previous prime is 19743550886149. The next prime is 19743550886231. The reversal of 19743550886159 is 95168805534791.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19743550886159 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 19743550886092 and 19743550886101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19743550886119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9871775443079 + 9871775443080.

It is an arithmetic number, because the mean of its divisors is an integer number (9871775443080).

Almost surely, 2^{19743550886159} is an apocalyptic number.

19743550886159 is a deficient number, since it is larger than the sum of its proper divisors (1).

19743550886159 is an equidigital number, since it uses as much as digits as its factorization.

19743550886159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592000, while the sum is 71.

The spelling of 19743550886159 in words is "nineteen trillion, seven hundred forty-three billion, five hundred fifty million, eight hundred eighty-six thousand, one hundred fifty-nine".