7609120091 has 2 divisors, whose sum is σ = 7609120092. Its totient is φ = 7609120090.

The previous prime is 7609120063. The next prime is 7609120109. The reversal of 7609120091 is 1900219067.

Together with next prime (7609120109) 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 7609120091 - 2⁶ = 7609120027 is a prime.

It is not a weakly prime, because it can be changed into another prime (7609122091) 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, 3804560045 + 3804560046.

It is an arithmetic number, because the mean of its divisors is an integer number (3804560046).

Almost surely, 2^7609120091 is an apocalyptic number.

7609120091 is a deficient number, since it is larger than the sum of its proper divisors (1).

7609120091 is an equidigital number, since it uses as much as digits as its factorization.

7609120091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 7609120091 is about 87230.2704971159. The cubic root of 7609120091 is about 1966.8812765163.

The spelling of 7609120091 in words is "seven billion, six hundred nine million, one hundred twenty thousand, ninety-one".