19430188842419 has 4 divisors (see below), whose sum is σ = 19542502072896. Its totient is φ = 19317875611944.

The previous prime is 19430188842391. The next prime is 19430188842431. The reversal of 19430188842419 is 91424888103491.

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 19430188842419 - 2²⁰ = 19430187793843 is a prime.

It is a super-2 number, since 2×19430188842419² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19430188842439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56156614979 + ... + 56156615324.

It is an arithmetic number, because the mean of its divisors is an integer number (4885625518224).

Almost surely, 2^{19430188842419} is an apocalyptic number.

19430188842419 is a deficient number, since it is larger than the sum of its proper divisors (112313230477).

19430188842419 is a wasteful number, since it uses less digits than its factorization.

19430188842419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112313230476.

The product of its (nonzero) digits is 15925248, while the sum is 62.

The spelling of 19430188842419 in words is "nineteen trillion, four hundred thirty billion, one hundred eighty-eight million, eight hundred forty-two thousand, four hundred nineteen".