19248459019 has 4 divisors (see below), whose sum is σ = 19289676744. Its totient is φ = 19207241296.

The previous prime is 19248458987. The next prime is 19248459053. The reversal of 19248459019 is 91095484291.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19248459019 - 2⁵ = 19248458987 is a prime.

It is a super-2 number, since 2×19248459019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19248459079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20608162 + ... + 20609095.

It is an arithmetic number, because the mean of its divisors is an integer number (4822419186).

Almost surely, 2^19248459019 is an apocalyptic number.

19248459019 is a deficient number, since it is larger than the sum of its proper divisors (41217725).

19248459019 is an equidigital number, since it uses as much as digits as its factorization.

19248459019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41217724.

The product of its (nonzero) digits is 933120, while the sum is 52.

The spelling of 19248459019 in words is "nineteen billion, two hundred forty-eight million, four hundred fifty-nine thousand, nineteen".