19900000363 has 2 divisors, whose sum is σ = 19900000364. Its totient is φ = 19900000362.

The previous prime is 19900000321. The next prime is 19900000387. The reversal of 19900000363 is 36300000991.

It is a strong prime.

It is an emirp because it is prime and its reverse (36300000991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19900000363 - 2¹⁷ = 19899869291 is a prime.

It is not a weakly prime, because it can be changed into another prime (19900000313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9950000181 + 9950000182.

It is an arithmetic number, because the mean of its divisors is an integer number (9950000182).

Almost surely, 2^19900000363 is an apocalyptic number.

19900000363 is a deficient number, since it is larger than the sum of its proper divisors (1).

19900000363 is an equidigital number, since it uses as much as digits as its factorization.

19900000363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 31.

The spelling of 19900000363 in words is "nineteen billion, nine hundred million, three hundred sixty-three", and thus it is an aban number.