19269227144 has 16 divisors (see below), whose sum is σ = 36179102220. Its totient is φ = 9621466560.

The previous prime is 19269227143. The next prime is 19269227177. The reversal of 19269227144 is 44172296291.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15286355044 + 3982872100 = 123638^2 + 63110^2 .

It is a super-2 number, since 2×19269227144² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19269227143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1637147 + ... + 1648874.

Almost surely, 2^19269227144 is an apocalyptic number.

It is an amenable number.

19269227144 is a deficient number, since it is larger than the sum of its proper divisors (16909875076).

19269227144 is a wasteful number, since it uses less digits than its factorization.

19269227144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286760 (or 3286756 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The spelling of 19269227144 in words is "nineteen billion, two hundred sixty-nine million, two hundred twenty-seven thousand, one hundred forty-four".