105923317618 has 4 divisors (see below), whose sum is σ = 158884976430. Its totient is φ = 52961658808.

The previous prime is 105923317589. The next prime is 105923317649. The reversal of 105923317618 is 816713329501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 816713329501 = 19 ⋅42984912079.

It can be written as a sum of positive squares in only one way, i.e., 94705754049 + 11217563569 = 307743^2 + 105913^2 .

It is a super-2 number, since 2×105923317618² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26480829403 + ... + 26480829406.

Almost surely, 2^105923317618 is an apocalyptic number.

105923317618 is a deficient number, since it is larger than the sum of its proper divisors (52961658812).

105923317618 is an equidigital number, since it uses as much as digits as its factorization.

105923317618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52961658811.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 105923317618 in words is "one hundred five billion, nine hundred twenty-three million, three hundred seventeen thousand, six hundred eighteen".