105509022887 has 4 divisors (see below), whose sum is σ = 111715436016. Its totient is φ = 99302609760.

The previous prime is 105509022863. The next prime is 105509022907. The reversal of 105509022887 is 788220905501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 788220905501 = 743123 ⋅1060687.

It is a cyclic number.

It is not a de Polignac number, because 105509022887 - 2⁶ = 105509022823 is a prime.

It is a super-2 number, since 2×105509022887² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105509022287) 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, 3103206539 + ... + 3103206572.

It is an arithmetic number, because the mean of its divisors is an integer number (27928859004).

Almost surely, 2^105509022887 is an apocalyptic number.

105509022887 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

105509022887 is a deficient number, since it is larger than the sum of its proper divisors (6206413129).

105509022887 is an equidigital number, since it uses as much as digits as its factorization.

105509022887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6206413128.

The product of its (nonzero) digits is 403200, while the sum is 47.

The spelling of 105509022887 in words is "one hundred five billion, five hundred nine million, twenty-two thousand, eight hundred eighty-seven".