19694285153 has 2 divisors, whose sum is σ = 19694285154. Its totient is φ = 19694285152.

The previous prime is 19694285129. The next prime is 19694285203. The reversal of 19694285153 is 35158249691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19663891984 + 30393169 = 140228^2 + 5513^2 .

It is a cyclic number.

It is not a de Polignac number, because 19694285153 - 2²⁴ = 19677507937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19694285095 and 19694285104.

It is not a weakly prime, because it can be changed into another prime (19694284153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9847142576 + 9847142577.

It is an arithmetic number, because the mean of its divisors is an integer number (9847142577).

Almost surely, 2^19694285153 is an apocalyptic number.

It is an amenable number.

19694285153 is a deficient number, since it is larger than the sum of its proper divisors (1).

19694285153 is an equidigital number, since it uses as much as digits as its factorization.

19694285153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2332800, while the sum is 53.

The spelling of 19694285153 in words is "nineteen billion, six hundred ninety-four million, two hundred eighty-five thousand, one hundred fifty-three".