19530030455 has 16 divisors (see below), whose sum is σ = 25242797664. Its totient is φ = 14419896960.

The previous prime is 19530030449. The next prime is 19530030467. The reversal of 19530030455 is 55403003591.

It is not a de Polignac number, because 19530030455 - 2⁶ = 19530030391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 468620 + ... + 508590.

It is an arithmetic number, because the mean of its divisors is an integer number (1577674854).

Almost surely, 2^19530030455 is an apocalyptic number.

19530030455 is a deficient number, since it is larger than the sum of its proper divisors (5712767209).

19530030455 is a wasteful number, since it uses less digits than its factorization.

19530030455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47506.

The product of its (nonzero) digits is 40500, while the sum is 35.

The spelling of 19530030455 in words is "nineteen billion, five hundred thirty million, thirty thousand, four hundred fifty-five".