1728060879069 has 24 divisors (see below), whose sum is σ = 2852782732800. Its totient is φ = 987425003808.

The previous prime is 1728060879067. The next prime is 1728060879173. The reversal of 1728060879069 is 9609780608271.

1728060879069 is a `hidden beast` number, since 17 + 2 + 8 + 0 + 608 + 7 + 9 + 0 + 6 + 9 = 666.

It is not a de Polignac number, because 1728060879069 - 2¹ = 1728060879067 is a prime.

It is a super-2 number, since 2×1728060879069² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 1728060878997 and 1728060879015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1728060879067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1143619 + ... + 2182655.

It is an arithmetic number, because the mean of its divisors is an integer number (118865947200).

Almost surely, 2^{1728060879069} is an apocalyptic number.

It is an amenable number.

1728060879069 is a deficient number, since it is larger than the sum of its proper divisors (1124721853731).

1728060879069 is a wasteful number, since it uses less digits than its factorization.

1728060879069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065449 (or 1065446 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 63.

The spelling of 1728060879069 in words is "one trillion, seven hundred twenty-eight billion, sixty million, eight hundred seventy-nine thousand, sixty-nine".