19134078163201 has 2 divisors, whose sum is σ = 19134078163202. Its totient is φ = 19134078163200.

The previous prime is 19134078163159. The next prime is 19134078163219. The reversal of 19134078163201 is 10236187043191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14298411192976 + 4835666970225 = 3781324^2 + 2199015^2 .

It is a cyclic number.

It is not a de Polignac number, because 19134078163201 - 2¹⁷ = 19134078032129 is a prime.

It is a super-2 number, since 2×19134078163201² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19134078163231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9567039081600 + 9567039081601.

It is an arithmetic number, because the mean of its divisors is an integer number (9567039081601).

Almost surely, 2^{19134078163201} is an apocalyptic number.

It is an amenable number.

19134078163201 is a deficient number, since it is larger than the sum of its proper divisors (1).

19134078163201 is an equidigital number, since it uses as much as digits as its factorization.

19134078163201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 19134078163201 in words is "nineteen trillion, one hundred thirty-four billion, seventy-eight million, one hundred sixty-three thousand, two hundred one".