19290911063 has 2 divisors, whose sum is σ = 19290911064. Its totient is φ = 19290911062.

The previous prime is 19290911021. The next prime is 19290911111. The reversal of 19290911063 is 36011909291.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19290911063 - 2¹⁸ = 19290648919 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19290911063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19290991063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9645455531 + 9645455532.

It is an arithmetic number, because the mean of its divisors is an integer number (9645455532).

Almost surely, 2^19290911063 is an apocalyptic number.

19290911063 is a deficient number, since it is larger than the sum of its proper divisors (1).

19290911063 is an equidigital number, since it uses as much as digits as its factorization.

19290911063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 41.

The spelling of 19290911063 in words is "nineteen billion, two hundred ninety million, nine hundred eleven thousand, sixty-three".