19042350385172 has 6 divisors (see below), whose sum is σ = 33324113174058. Its totient is φ = 9521175192584.

The previous prime is 19042350385169. The next prime is 19042350385189. The reversal of 19042350385172 is 27158305324091.

It can be written as a sum of positive squares in only one way, i.e., 18211419690256 + 830930694916 = 4267484^2 + 911554^2 .

It is a super-2 number, since 2×19042350385172² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19042350385172.

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 as a sum of consecutive naturals, namely, 2380293798143 + ... + 2380293798150.

It is an arithmetic number, because the mean of its divisors is an integer number (5554018862343).

Almost surely, 2^{19042350385172} is an apocalyptic number.

It is an amenable number.

19042350385172 is a deficient number, since it is larger than the sum of its proper divisors (14281762788886).

19042350385172 is a wasteful number, since it uses less digits than its factorization.

19042350385172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4760587596297 (or 4760587596295 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 19042350385172 in words is "nineteen trillion, forty-two billion, three hundred fifty million, three hundred eighty-five thousand, one hundred seventy-two".