19425171315133 has 2 divisors, whose sum is σ = 19425171315134. Its totient is φ = 19425171315132.

The previous prime is 19425171315131. The next prime is 19425171315161. The reversal of 19425171315133 is 33151317152491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19422336498084 + 2834817049 = 4407078^2 + 53243^2 .

It is a cyclic number.

It is not a de Polignac number, because 19425171315133 - 2¹ = 19425171315131 is a prime.

Together with 19425171315131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19425171315131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9712585657566 + 9712585657567.

It is an arithmetic number, because the mean of its divisors is an integer number (9712585657567).

Almost surely, 2^{19425171315133} is an apocalyptic number.

It is an amenable number.

19425171315133 is a deficient number, since it is larger than the sum of its proper divisors (1).

19425171315133 is an equidigital number, since it uses as much as digits as its factorization.

19425171315133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 340200, while the sum is 46.

The spelling of 19425171315133 in words is "nineteen trillion, four hundred twenty-five billion, one hundred seventy-one million, three hundred fifteen thousand, one hundred thirty-three".