105650049569 has 4 divisors (see below), whose sum is σ = 107097310596. Its totient is φ = 104202788544.

The previous prime is 105650049563. The next prime is 105650049581. The reversal of 105650049569 is 965940056501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75563412544 + 30086637025 = 274888^2 + 173455^2 .

It is a cyclic number.

It is not a de Polignac number, because 105650049569 - 2²⁸ = 105381614113 is a prime.

It is a super-2 number, since 2×105650049569² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105650049563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723630404 + ... + 723630549.

It is an arithmetic number, because the mean of its divisors is an integer number (26774327649).

Almost surely, 2^105650049569 is an apocalyptic number.

It is an amenable number.

105650049569 is a deficient number, since it is larger than the sum of its proper divisors (1447261027).

105650049569 is an equidigital number, since it uses as much as digits as its factorization.

105650049569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447261026.

The product of its (nonzero) digits is 1458000, while the sum is 50.

The spelling of 105650049569 in words is "one hundred five billion, six hundred fifty million, forty-nine thousand, five hundred sixty-nine".