2010861091 has 2 divisors, whose sum is σ = 2010861092. Its totient is φ = 2010861090.

The previous prime is 2010861059. The next prime is 2010861109. The reversal of 2010861091 is 1901680102.

It is a happy number.

Together with next prime (2010861109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2010861091 - 2⁵ = 2010861059 is a prime.

It is not a weakly prime, because it can be changed into another prime (2010861191) 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, 1005430545 + 1005430546.

It is an arithmetic number, because the mean of its divisors is an integer number (1005430546).

Almost surely, 2^2010861091 is an apocalyptic number.

2010861091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010861091 is an equidigital number, since it uses as much as digits as its factorization.

2010861091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 2010861091 is about 44842.6258263273. The cubic root of 2010861091 is about 1262.1976200446.

The spelling of 2010861091 in words is "two billion, ten million, eight hundred sixty-one thousand, ninety-one".