169892489145 has 32 divisors (see below), whose sum is σ = 288387809280. Its totient is φ = 85164488640.

The previous prime is 169892489119. The next prime is 169892489147. The reversal of 169892489145 is 541984298961.

It is not a de Polignac number, because 169892489145 - 2⁵ = 169892489113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (169892489147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2310711 + ... + 2383100.

It is an arithmetic number, because the mean of its divisors is an integer number (9012119040).

Almost surely, 2^169892489145 is an apocalyptic number.

169892489145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

169892489145 is a deficient number, since it is larger than the sum of its proper divisors (118495320135).

169892489145 is a wasteful number, since it uses less digits than its factorization.

169892489145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4693965.

The product of its digits is 44789760, while the sum is 66.

The spelling of 169892489145 in words is "one hundred sixty-nine billion, eight hundred ninety-two million, four hundred eighty-nine thousand, one hundred forty-five".