19530380499 has 8 divisors (see below), whose sum is σ = 29760579840. Its totient is φ = 11160217416.

The previous prime is 19530380473. The next prime is 19530380543. The reversal of 19530380499 is 99408303591.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19530380499 - 2⁷ = 19530380371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19530380449) 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 7 ways as a sum of consecutive naturals, for example, 465009039 + ... + 465009080.

It is an arithmetic number, because the mean of its divisors is an integer number (3720072480).

Almost surely, 2^19530380499 is an apocalyptic number.

19530380499 is a deficient number, since it is larger than the sum of its proper divisors (10230199341).

19530380499 is an equidigital number, since it uses as much as digits as its factorization.

19530380499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930018129.

The product of its (nonzero) digits is 1049760, while the sum is 51.

The spelling of 19530380499 in words is "nineteen billion, five hundred thirty million, three hundred eighty thousand, four hundred ninety-nine".