19228682169 has 6 divisors (see below), whose sum is σ = 27774763146. Its totient is φ = 12819121440.

The previous prime is 19228682141. The next prime is 19228682173. The reversal of 19228682169 is 96128682291.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14270691600 + 4957990569 = 119460^2 + 70413^2 .

It is not a de Polignac number, because 19228682169 - 2²⁸ = 18960246713 is a prime.

It is a super-2 number, since 2×19228682169² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19228684169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1068260112 + ... + 1068260129.

It is an arithmetic number, because the mean of its divisors is an integer number (4629127191).

Almost surely, 2^19228682169 is an apocalyptic number.

It is an amenable number.

19228682169 is a deficient number, since it is larger than the sum of its proper divisors (8546080977).

19228682169 is a wasteful number, since it uses less digits than its factorization.

19228682169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136520247 (or 2136520244 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The spelling of 19228682169 in words is "nineteen billion, two hundred twenty-eight million, six hundred eighty-two thousand, one hundred sixty-nine".