169828347861 has 12 divisors (see below), whose sum is σ = 245342653920. Its totient is φ = 113202726120.

The previous prime is 169828347809. The next prime is 169828347863. The reversal of 169828347861 is 168743828961.

169828347861 is a `hidden beast` number, since 1 + 6 + 9 + 82 + 83 + 478 + 6 + 1 = 666.

It is not a de Polignac number, because 169828347861 - 2¹⁵ = 169828315093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169828347863) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1281025 + ... + 1407366.

It is an arithmetic number, because the mean of its divisors is an integer number (20445221160).

Almost surely, 2^169828347861 is an apocalyptic number.

It is an amenable number.

169828347861 is a deficient number, since it is larger than the sum of its proper divisors (75514306059).

169828347861 is a wasteful number, since it uses less digits than its factorization.

169828347861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695416 (or 2695413 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 63.

The spelling of 169828347861 in words is "one hundred sixty-nine billion, eight hundred twenty-eight million, three hundred forty-seven thousand, eight hundred sixty-one".