108585577769 has 4 divisors (see below), whose sum is σ = 108592154196. Its totient is φ = 108579001344.

The previous prime is 108585577747. The next prime is 108585577781. The reversal of 108585577769 is 967775585801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 967775585801 = 107 ⋅9044631643.

It can be written as a sum of positive squares in 2 ways, for example, as 81517102144 + 27068475625 = 285512^2 + 164525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108585577769 is a prime.

It is a super-2 number, since 2×108585577769² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108585577699 and 108585577708.

It is not an unprimeable number, because it can be changed into a prime (108585577799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3263384 + ... + 3296489.

It is an arithmetic number, because the mean of its divisors is an integer number (27148038549).

Almost surely, 2^108585577769 is an apocalyptic number.

It is an amenable number.

108585577769 is a deficient number, since it is larger than the sum of its proper divisors (6576427).

108585577769 is an equidigital number, since it uses as much as digits as its factorization.

108585577769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6576426.

The product of its (nonzero) digits is 148176000, while the sum is 68.

The spelling of 108585577769 in words is "one hundred eight billion, five hundred eighty-five million, five hundred seventy-seven thousand, seven hundred sixty-nine".