100844652091 has 2 divisors, whose sum is σ = 100844652092. Its totient is φ = 100844652090.

The previous prime is 100844652079. The next prime is 100844652109. The reversal of 100844652091 is 190256448001.

Together with next prime (100844652109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (190256448001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100844652091 - 2⁵ = 100844652059 is a prime.

It is not a weakly prime, because it can be changed into another prime (100844652031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50422326045 + 50422326046.

It is an arithmetic number, because the mean of its divisors is an integer number (50422326046).

Almost surely, 2^100844652091 is an apocalyptic number.

100844652091 is a deficient number, since it is larger than the sum of its proper divisors (1).

100844652091 is an equidigital number, since it uses as much as digits as its factorization.

100844652091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 100844652091 in words is "one hundred billion, eight hundred forty-four million, six hundred fifty-two thousand, ninety-one".