19005430240255 has 8 divisors (see below), whose sum is σ = 22808321105472. Its totient is φ = 15203140980768.

The previous prime is 19005430240241. The next prime is 19005430240297. The reversal of 19005430240255 is 55204203450091.

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

It is a cyclic number.

It is not a de Polignac number, because 19005430240255 - 2⁹ = 19005430239743 is a prime.

It is a super-2 number, since 2×19005430240255² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150331927 + ... + 150458296.

It is an arithmetic number, because the mean of its divisors is an integer number (2851040138184).

Almost surely, 2^{19005430240255} is an apocalyptic number.

19005430240255 is a deficient number, since it is larger than the sum of its proper divisors (3802890865217).

19005430240255 is a wasteful number, since it uses less digits than its factorization.

19005430240255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300802865.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 19005430240255 in words is "nineteen trillion, five billion, four hundred thirty million, two hundred forty thousand, two hundred fifty-five".