105772217686 has 8 divisors (see below), whose sum is σ = 167991169320. Its totient is φ = 49775161248.

The previous prime is 105772217623. The next prime is 105772217729. The reversal of 105772217686 is 686712277501.

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

It is a super-2 number, since 2×105772217686² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 1555473756 + ... + 1555473823.

It is an arithmetic number, because the mean of its divisors is an integer number (20998896165).

Almost surely, 2^105772217686 is an apocalyptic number.

105772217686 is a deficient number, since it is larger than the sum of its proper divisors (62218951634).

105772217686 is a wasteful number, since it uses less digits than its factorization.

105772217686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110947598.

The product of its (nonzero) digits is 1975680, while the sum is 52.

The spelling of 105772217686 in words is "one hundred five billion, seven hundred seventy-two million, two hundred seventeen thousand, six hundred eighty-six".