105447731755091 has 12 divisors (see below), whose sum is σ = 121406957844984. Its totient is φ = 90816228302400.

The previous prime is 105447731755031. The next prime is 105447731755127. The reversal of 105447731755091 is 190557137744501.

It is not a de Polignac number, because 105447731755091 - 2³⁸ = 105172853848147 is a prime.

It is a super-2 number, since 2×105447731755091² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105447731755091.

It is not an unprimeable number, because it can be changed into a prime (105447731755031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13277222390 + ... + 13277230331.

It is an arithmetic number, because the mean of its divisors is an integer number (10117246487082).

Almost surely, 2^{105447731755091} is an apocalyptic number.

105447731755091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

105447731755091 is a deficient number, since it is larger than the sum of its proper divisors (15959226089893).

105447731755091 is a wasteful number, since it uses less digits than its factorization.

105447731755091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26554452770 (or 26554452751 counting only the distinct ones).

The product of its (nonzero) digits is 18522000, while the sum is 59.

The spelling of 105447731755091 in words is "one hundred five trillion, four hundred forty-seven billion, seven hundred thirty-one million, seven hundred fifty-five thousand, ninety-one".