19274645363 has 2 divisors, whose sum is σ = 19274645364. Its totient is φ = 19274645362.

The previous prime is 19274645359. The next prime is 19274645371. The reversal of 19274645363 is 36354647291.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19274645363 - 2² = 19274645359 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (19274645333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9637322681 + 9637322682.

It is an arithmetic number, because the mean of its divisors is an integer number (9637322682).

Almost surely, 2^19274645363 is an apocalyptic number.

19274645363 is a deficient number, since it is larger than the sum of its proper divisors (1).

19274645363 is an equidigital number, since it uses as much as digits as its factorization.

19274645363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 50.

The spelling of 19274645363 in words is "nineteen billion, two hundred seventy-four million, six hundred forty-five thousand, three hundred sixty-three".