105851048217 has 32 divisors (see below), whose sum is σ = 150187685760. Its totient is φ = 66222673920.

The previous prime is 105851048189. The next prime is 105851048227. The reversal of 105851048217 is 712840158501.

It is not a de Polignac number, because 105851048217 - 2⁶ = 105851048153 is a prime.

It is a super-2 number, since 2×105851048217² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105851048227) 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 31 ways as a sum of consecutive naturals, for example, 194617 + ... + 499577.

It is an arithmetic number, because the mean of its divisors is an integer number (4693365180).

Almost surely, 2^105851048217 is an apocalyptic number.

It is an amenable number.

105851048217 is a deficient number, since it is larger than the sum of its proper divisors (44336637543).

105851048217 is a wasteful number, since it uses less digits than its factorization.

105851048217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305113.

The product of its (nonzero) digits is 89600, while the sum is 42.

The spelling of 105851048217 in words is "one hundred five billion, eight hundred fifty-one million, forty-eight thousand, two hundred seventeen".