105850806091 has 2 divisors, whose sum is σ = 105850806092. Its totient is φ = 105850806090.

The previous prime is 105850806053. The next prime is 105850806161. The reversal of 105850806091 is 190608058501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105850806091 - 2¹⁵ = 105850773323 is a prime.

It is a super-2 number, since 2×105850806091² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105850806001) 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 as a sum of consecutive naturals, namely, 52925403045 + 52925403046.

It is an arithmetic number, because the mean of its divisors is an integer number (52925403046).

Almost surely, 2^105850806091 is an apocalyptic number.

105850806091 is a deficient number, since it is larger than the sum of its proper divisors (1).

105850806091 is an equidigital number, since it uses as much as digits as its factorization.

105850806091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 43.

The spelling of 105850806091 in words is "one hundred five billion, eight hundred fifty million, eight hundred six thousand, ninety-one".