105282782781 has 8 divisors (see below), whose sum is σ = 153138593184. Its totient is φ = 63807747120.

The previous prime is 105282782771. The next prime is 105282782819. The reversal of 105282782781 is 187287282501.

It is a happy number.

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

It is not a de Polignac number, because 105282782781 - 2¹⁴ = 105282766397 is a prime.

It is a super-2 number, since 2×105282782781² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105282782741) 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 7 ways as a sum of consecutive naturals, for example, 1595193646 + ... + 1595193711.

It is an arithmetic number, because the mean of its divisors is an integer number (19142324148).

Almost surely, 2^105282782781 is an apocalyptic number.

105282782781 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

105282782781 is a deficient number, since it is larger than the sum of its proper divisors (47855810403).

105282782781 is a wasteful number, since it uses less digits than its factorization.

105282782781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190387371.

The product of its (nonzero) digits is 1003520, while the sum is 51.

The spelling of 105282782781 in words is "one hundred five billion, two hundred eighty-two million, seven hundred eighty-two thousand, seven hundred eighty-one".