19389223426020 has 96 divisors (see below), whose sum is σ = 62047159910400. Its totient is φ = 4431705001344.

The previous prime is 19389223426019. The next prime is 19389223426031. The reversal of 19389223426020 is 2062432298391.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15770301 + ... + 16955259.

It is an arithmetic number, because the mean of its divisors is an integer number (646324582400).

Almost surely, 2^{19389223426020} is an apocalyptic number.

19389223426020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19389223426020 is an abundant number, since it is smaller than the sum of its proper divisors (42657936484380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19389223426020 is a wasteful number, since it uses less digits than its factorization.

19389223426020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223937 (or 1223935 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 51.

The spelling of 19389223426020 in words is "nineteen trillion, three hundred eighty-nine billion, two hundred twenty-three million, four hundred twenty-six thousand, twenty".