105217274755 has 4 divisors (see below), whose sum is σ = 126260729712. Its totient is φ = 84173819800.

The previous prime is 105217274741. The next prime is 105217274759. The reversal of 105217274755 is 557472712501.

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

It is not a de Polignac number, because 105217274755 - 2⁷ = 105217274627 is a prime.

It is a super-2 number, since 2×105217274755² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105217274759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10521727471 + ... + 10521727480.

It is an arithmetic number, because the mean of its divisors is an integer number (31565182428).

Almost surely, 2^105217274755 is an apocalyptic number.

105217274755 is a deficient number, since it is larger than the sum of its proper divisors (21043454957).

105217274755 is an equidigital number, since it uses as much as digits as its factorization.

105217274755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21043454956.

The product of its (nonzero) digits is 686000, while the sum is 46.

The spelling of 105217274755 in words is "one hundred five billion, two hundred seventeen million, two hundred seventy-four thousand, seven hundred fifty-five".