91675009163 has 2 divisors, whose sum is σ = 91675009164. Its totient is φ = 91675009162.

The previous prime is 91675009133. The next prime is 91675009193. The reversal of 91675009163 is 36190057619.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (91675009133) and next prime (91675009193).

It is a cyclic number.

It is not a de Polignac number, because 91675009163 - 2⁶ = 91675009099 is a prime.

It is a super-2 number, since 2×91675009163² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (91675009133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45837504581 + 45837504582.

It is an arithmetic number, because the mean of its divisors is an integer number (45837504582).

Almost surely, 2^91675009163 is an apocalyptic number.

91675009163 is a deficient number, since it is larger than the sum of its proper divisors (1).

91675009163 is an equidigital number, since it uses as much as digits as its factorization.

91675009163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 306180, while the sum is 47.

The spelling of 91675009163 in words is "ninety-one billion, six hundred seventy-five million, nine thousand, one hundred sixty-three".