19345127852671 has 2 divisors, whose sum is σ = 19345127852672. Its totient is φ = 19345127852670.

The previous prime is 19345127852629. The next prime is 19345127852719. The reversal of 19345127852671 is 17625872154391.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19345127852671 - 2⁹ = 19345127852159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19345127852471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9672563926335 + 9672563926336.

It is an arithmetic number, because the mean of its divisors is an integer number (9672563926336).

Almost surely, 2^{19345127852671} is an apocalyptic number.

19345127852671 is a deficient number, since it is larger than the sum of its proper divisors (1).

19345127852671 is an equidigital number, since it uses as much as digits as its factorization.

19345127852671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25401600, while the sum is 61.

The spelling of 19345127852671 in words is "nineteen trillion, three hundred forty-five billion, one hundred twenty-seven million, eight hundred fifty-two thousand, six hundred seventy-one".