73685385169 has 8 divisors (see below), whose sum is σ = 81179939520. Its totient is φ = 66323478000.

The previous prime is 73685385149. The next prime is 73685385209. The reversal of 73685385169 is 96158358637.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73685385169 - 2¹³ = 73685376977 is a prime.

It is a super-2 number, since 2×73685385169² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73685385149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33160629 + ... + 33162850.

It is an arithmetic number, because the mean of its divisors is an integer number (10147492440).

Almost surely, 2^73685385169 is an apocalyptic number.

It is an amenable number.

73685385169 is a deficient number, since it is larger than the sum of its proper divisors (7494554351).

73685385169 is a wasteful number, since it uses less digits than its factorization.

73685385169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66323591.

The product of its digits is 32659200, while the sum is 61.

It can be divided in two parts, 73685 and 385169, that added together give a palindrome (458854).

The spelling of 73685385169 in words is "seventy-three billion, six hundred eighty-five million, three hundred eighty-five thousand, one hundred sixty-nine".